3445273731 has 4 divisors (see below), whose sum is σ = 4593698312. Its totient is φ = 2296849152.

The previous prime is 3445273723. The next prime is 3445273739. The reversal of 3445273731 is 1373725443.

3445273731 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3445273723) and next prime (3445273739).

It is not a de Polignac number, because 3445273731 - 2³ = 3445273723 is a prime.

It is a super-2 number, since 2×3445273731² = 23739822163037320722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3445273731.

It is not an unprimeable number, because it can be changed into a prime (3445273739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574212286 + ... + 574212291.

It is an arithmetic number, because the mean of its divisors is an integer number (1148424578).

Almost surely, 2^3445273731 is an apocalyptic number.

3445273731 is a deficient number, since it is larger than the sum of its proper divisors (1148424581).

3445273731 is a wasteful number, since it uses less digits than its factorization.

3445273731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148424580.

The product of its digits is 211680, while the sum is 39.

The square root of 3445273731 is about 58696.4541603665. The cubic root of 3445273731 is about 1510.3394893301.

The spelling of 3445273731 in words is "three billion, four hundred forty-five million, two hundred seventy-three thousand, seven hundred thirty-one".