64454697 has 10 divisors (see below), whose sum is σ = 96284298. Its totient is φ = 42969744.

The previous prime is 64454683. The next prime is 64454699. The reversal of 64454697 is 79645446.

It can be written as a sum of positive squares in only one way, i.e., 59351616 + 5103081 = 7704^2 + 2259^2 .

It is not a de Polignac number, because 64454697 - 2¹² = 64450601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64454699) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 397788 + ... + 397949.

Almost surely, 2^64454697 is an apocalyptic number.

It is an amenable number.

64454697 is a deficient number, since it is larger than the sum of its proper divisors (31829601).

64454697 is an equidigital number, since it uses as much as digits as its factorization.

64454697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795749 (or 795740 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 64454697 is about 8028.3682650960. The cubic root of 64454697 is about 400.9450508554.

The spelling of 64454697 in words is "sixty-four million, four hundred fifty-four thousand, six hundred ninety-seven".