64923650 has 24 divisors (see below), whose sum is σ = 131737104. Its totient is φ = 23608400.

The previous prime is 64923647. The next prime is 64923653. The reversal of 64923650 is 5632946.

It is an interprime number because it is at equal distance from previous prime (64923647) and next prime (64923653).

It is a self number, because there is not a number n which added to its sum of digits gives 64923650.

It is not an unprimeable number, because it can be changed into a prime (64923653) 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, 58472 + ... + 59571.

It is an arithmetic number, because the mean of its divisors is an integer number (5489046).

Almost surely, 2^64923650 is an apocalyptic number.

64923650 is an abundant number, since it is smaller than the sum of its proper divisors (66813454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64923650 is a wasteful number, since it uses less digits than its factorization.

64923650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118066 (or 118061 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 64923650 is about 8057.5213310298. The cubic root of 64923650 is about 401.9150873022.

The spelling of 64923650 in words is "sixty-four million, nine hundred twenty-three thousand, six hundred fifty".