3489215797 has 4 divisors (see below), whose sum is σ = 3499213900. Its totient is φ = 3479217696.

The previous prime is 3489215771. The next prime is 3489215857. The reversal of 3489215797 is 7975129843.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7975129843 = 31 ⋅257262253.

It can be written as a sum of positive squares in 2 ways, for example, as 1743146001 + 1746069796 = 41751^2 + 41786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3489215797 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 (3489213797) 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, 4998528 + ... + 4999225.

It is an arithmetic number, because the mean of its divisors is an integer number (874803475).

Almost surely, 2^3489215797 is an apocalyptic number.

It is an amenable number.

3489215797 is a deficient number, since it is larger than the sum of its proper divisors (9998103).

3489215797 is an equidigital number, since it uses as much as digits as its factorization.

3489215797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9998102.

The product of its digits is 3810240, while the sum is 55.

The square root of 3489215797 is about 59069.5843645442. The cubic root of 3489215797 is about 1516.7334915021.

The spelling of 3489215797 in words is "three billion, four hundred eighty-nine million, two hundred fifteen thousand, seven hundred ninety-seven".