64963535 has 32 divisors (see below), whose sum is σ = 97423872. Its totient is φ = 40487040.

The previous prime is 64963513. The next prime is 64963537. The reversal of 64963535 is 53536946.

It is not a de Polignac number, because 64963535 - 2⁶ = 64963471 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64963492 and 64963501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64963537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29420 + ... + 31550.

It is an arithmetic number, because the mean of its divisors is an integer number (3044496).

Almost surely, 2^64963535 is an apocalyptic number.

64963535 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64963535 is a deficient number, since it is larger than the sum of its proper divisors (32460337).

64963535 is a wasteful number, since it uses less digits than its factorization.

64963535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223.

The product of its digits is 291600, while the sum is 41.

The square root of 64963535 is about 8059.9959677409. The cubic root of 64963535 is about 401.9973742228.

The spelling of 64963535 in words is "sixty-four million, nine hundred sixty-three thousand, five hundred thirty-five".