3390787397 has 4 divisors (see below), whose sum is σ = 3538212960. Its totient is φ = 3243361836.

The previous prime is 3390787349. The next prime is 3390787427. The reversal of 3390787397 is 7937870933.

3390787397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7937870933 = 1597 ⋅4970489.

It is not a de Polignac number, because 3390787397 - 2²⁴ = 3374010181 is a prime.

It is a super-2 number, since 2×3390787397² = 22994878343308071218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3390780397) 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, 73712747 + ... + 73712792.

It is an arithmetic number, because the mean of its divisors is an integer number (884553240).

Almost surely, 2^3390787397 is an apocalyptic number.

It is an amenable number.

3390787397 is a deficient number, since it is larger than the sum of its proper divisors (147425563).

3390787397 is a wasteful number, since it uses less digits than its factorization.

3390787397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147425562.

The product of its (nonzero) digits is 6001128, while the sum is 56.

The square root of 3390787397 is about 58230.4679441957. The cubic root of 3390787397 is about 1502.3352361909.

The spelling of 3390787397 in words is "three billion, three hundred ninety million, seven hundred eighty-seven thousand, three hundred ninety-seven".