65022978 has 32 divisors (see below), whose sum is σ = 142848000. Its totient is φ = 19640016.

The previous prime is 65022967. The next prime is 65022989. The reversal of 65022978 is 87922056.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (65022967) and next prime (65022989).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9778 + ... + 15021.

It is an arithmetic number, because the mean of its divisors is an integer number (4464000).

Almost surely, 2^65022978 is an apocalyptic number.

65022978 is an abundant number, since it is smaller than the sum of its proper divisors (77825022).

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

65022978 is a wasteful number, since it uses less digits than its factorization.

65022978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24846.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 65022978 is about 8063.6826574463. The cubic root of 65022978 is about 402.1199488599.

The spelling of 65022978 in words is "sixty-five million, twenty-two thousand, nine hundred seventy-eight".