3147523397 has 4 divisors (see below), whose sum is σ = 3147775680. Its totient is φ = 3147271116.

The previous prime is 3147523339. The next prime is 3147523409. The reversal of 3147523397 is 7933257413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3147523397 - 2¹² = 3147519301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3147523097) 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, 106397 + ... + 132722.

It is an arithmetic number, because the mean of its divisors is an integer number (786943920).

Almost surely, 2^3147523397 is an apocalyptic number.

It is an amenable number.

3147523397 is a deficient number, since it is larger than the sum of its proper divisors (252283).

3147523397 is a wasteful number, since it uses less digits than its factorization.

3147523397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252282.

The product of its digits is 476280, while the sum is 44.

The square root of 3147523397 is about 56102.7931301107. The cubic root of 3147523397 is about 1465.5129340330.

It can be divided in two parts, 31475 and 23397, that added together give a cube (54872 = 38³).

The spelling of 3147523397 in words is "three billion, one hundred forty-seven million, five hundred twenty-three thousand, three hundred ninety-seven".