264398697 has 6 divisors (see below), whose sum is σ = 381909242. Its totient is φ = 176265792.

The previous prime is 264398689. The next prime is 264398749. The reversal of 264398697 is 796893462.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 201100761 + 63297936 = 14181^2 + 7956^2 .

It is not a de Polignac number, because 264398697 - 2³ = 264398689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264398657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14688808 + ... + 14688825.

Almost surely, 2^264398697 is an apocalyptic number.

It is an amenable number.

264398697 is a deficient number, since it is larger than the sum of its proper divisors (117510545).

264398697 is a wasteful number, since it uses less digits than its factorization.

264398697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29377639 (or 29377636 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 264398697 is about 16260.3412325818. The cubic root of 264398697 is about 641.8296415250.

The spelling of 264398697 in words is "two hundred sixty-four million, three hundred ninety-eight thousand, six hundred ninety-seven".