64102797 has 12 divisors (see below), whose sum is σ = 101010624. Its totient is φ = 38850120.

The previous prime is 64102793. The next prime is 64102799. The reversal of 64102797 is 79720146.

It is a happy number.

64102797 is a `hidden beast` number, since 641 + 0 + 2 + 7 + 9 + 7 = 666.

It is not a de Polignac number, because 64102797 - 2² = 64102793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64102793) 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, 323653 + ... + 323850.

It is an arithmetic number, because the mean of its divisors is an integer number (8417552).

Almost surely, 2^64102797 is an apocalyptic number.

It is an amenable number.

64102797 is a deficient number, since it is larger than the sum of its proper divisors (36907827).

64102797 is a wasteful number, since it uses less digits than its factorization.

64102797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647520 (or 647517 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 64102797 is about 8006.4222346814. The cubic root of 64102797 is about 400.2140458572.

The spelling of 64102797 in words is "sixty-four million, one hundred two thousand, seven hundred ninety-seven".