265247397 has 12 divisors (see below), whose sum is σ = 383277024. Its totient is φ = 176766120.

The previous prime is 265247363. The next prime is 265247399. The reversal of 265247397 is 793742562.

It is not a de Polignac number, because 265247397 - 2¹¹ = 265245349 is a prime.

It is a super-3 number, since 3×265247397³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265247399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41122 + ... + 47132.

It is an arithmetic number, because the mean of its divisors is an integer number (31939752).

Almost surely, 2^265247397 is an apocalyptic number.

It is an amenable number.

265247397 is a deficient number, since it is larger than the sum of its proper divisors (118029627).

265247397 is a wasteful number, since it uses less digits than its factorization.

265247397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10920 (or 10917 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 265247397 is about 16286.4175618827. The cubic root of 265247397 is about 642.5156497170.

The spelling of 265247397 in words is "two hundred sixty-five million, two hundred forty-seven thousand, three hundred ninety-seven".