7389940997 has 16 divisors (see below), whose sum is σ = 7931520000. Its totient is φ = 6863822784.

The previous prime is 7389940973. The next prime is 7389941011. The reversal of 7389940997 is 7990499837.

It is a cyclic number.

It is not a de Polignac number, because 7389940997 - 2⁶ = 7389940933 is a prime.

It is a super-2 number, since 2×7389940997² (a number of 21 digits) 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 (7389940927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2565404 + ... + 2568282.

It is an arithmetic number, because the mean of its divisors is an integer number (495720000).

Almost surely, 2^7389940997 is an apocalyptic number.

It is an amenable number.

7389940997 is a deficient number, since it is larger than the sum of its proper divisors (541579003).

7389940997 is a wasteful number, since it uses less digits than its factorization.

7389940997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500.

The product of its (nonzero) digits is 30862944, while the sum is 65.

The square root of 7389940997 is about 85964.7660207367. The cubic root of 7389940997 is about 1947.8117901506.

It can be divided in two parts, 7389940 and 997, that added together give a palindrome (7390937).

The spelling of 7389940997 in words is "seven billion, three hundred eighty-nine million, nine hundred forty thousand, nine hundred ninety-seven".