64962638 has 16 divisors (see below), whose sum is σ = 105746256. Its totient is φ = 29752320.

The previous prime is 64962631. The next prime is 64962641. The reversal of 64962638 is 83626946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64962631) 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, 6131 + ... + 12942.

It is an arithmetic number, because the mean of its divisors is an integer number (6609141).

Almost surely, 2^64962638 is an apocalyptic number.

64962638 is a deficient number, since it is larger than the sum of its proper divisors (40783618).

64962638 is a wasteful number, since it uses less digits than its factorization.

64962638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19219.

The product of its digits is 373248, while the sum is 44.

The square root of 64962638 is about 8059.9403223597. The cubic root of 64962638 is about 401.9955239883.

The spelling of 64962638 in words is "sixty-four million, nine hundred sixty-two thousand, six hundred thirty-eight".