264896217 has 8 divisors (see below), whose sum is σ = 392438880. Its totient is φ = 176597460.

The previous prime is 264896197. The next prime is 264896231. The reversal of 264896217 is 712698462.

It is a happy number.

It is not a de Polignac number, because 264896217 - 2¹¹ = 264894169 is a prime.

It is a super-2 number, since 2×264896217² = 140340011561822178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (264896257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4905459 + ... + 4905512.

It is an arithmetic number, because the mean of its divisors is an integer number (49054860).

Almost surely, 2^264896217 is an apocalyptic number.

264896217 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

264896217 is a deficient number, since it is larger than the sum of its proper divisors (127542663).

264896217 is an equidigital number, since it uses as much as digits as its factorization.

264896217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9810980 (or 9810974 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 264896217 is about 16275.6326144331. The cubic root of 264896217 is about 642.2319670099.

The spelling of 264896217 in words is "two hundred sixty-four million, eight hundred ninety-six thousand, two hundred seventeen".