64965590 has 8 divisors (see below), whose sum is σ = 116938080. Its totient is φ = 25986232.

The previous prime is 64965587. The next prime is 64965601. The reversal of 64965590 is 9556946.

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

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, 3248270 + ... + 3248289.

It is an arithmetic number, because the mean of its divisors is an integer number (14617260).

Almost surely, 2^64965590 is an apocalyptic number.

64965590 is a deficient number, since it is larger than the sum of its proper divisors (51972490).

64965590 is a wasteful number, since it uses less digits than its factorization.

64965590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6496566.

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 64965590 is about 8060.1234481861. The cubic root of 64965590 is about 402.0016129899.

The spelling of 64965590 in words is "sixty-four million, nine hundred sixty-five thousand, five hundred ninety".