7260391397 has 24 divisors (see below), whose sum is σ = 9107159040. Its totient is φ = 5751829440.

The previous prime is 7260391351. The next prime is 7260391423. The reversal of 7260391397 is 7931930627.

It is a happy number.

It is not a de Polignac number, because 7260391397 - 2¹² = 7260387301 is a prime.

It is a super-2 number, since 2×7260391397² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7260391097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56933 + ... + 133274.

It is an arithmetic number, because the mean of its divisors is an integer number (379464960).

Almost surely, 2^7260391397 is an apocalyptic number.

It is an amenable number.

7260391397 is a deficient number, since it is larger than the sum of its proper divisors (1846767643).

7260391397 is a wasteful number, since it uses less digits than its factorization.

7260391397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190281 (or 190274 counting only the distinct ones).

The product of its (nonzero) digits is 428652, while the sum is 47.

The square root of 7260391397 is about 85207.9303644913. The cubic root of 7260391397 is about 1936.3625643059.

The spelling of 7260391397 in words is "seven billion, two hundred sixty million, three hundred ninety-one thousand, three hundred ninety-seven".