64562390 has 8 divisors (see below), whose sum is σ = 116212320. Its totient is φ = 25824952.

The previous prime is 64562387. The next prime is 64562401. The reversal of 64562390 is 9326546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 64562390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3228110 + ... + 3228129.

It is an arithmetic number, because the mean of its divisors is an integer number (14526540).

Almost surely, 2^64562390 is an apocalyptic number.

64562390 is a deficient number, since it is larger than the sum of its proper divisors (51649930).

64562390 is a wasteful number, since it uses less digits than its factorization.

64562390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6456246.

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

The square root of 64562390 is about 8035.0724950059. The cubic root of 64562390 is about 401.1682306049.

The spelling of 64562390 in words is "sixty-four million, five hundred sixty-two thousand, three hundred ninety".