65012790 has 16 divisors (see below), whose sum is σ = 156030768. Its totient is φ = 17336736.

The previous prime is 65012747. The next prime is 65012807. The reversal of 65012790 is 9721056.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2167093 = 65012790 / (6 + 5 + 0 + 1 + 2 + 7 + 9 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1083517 + ... + 1083576.

It is an arithmetic number, because the mean of its divisors is an integer number (9751923).

Almost surely, 2^65012790 is an apocalyptic number.

65012790 is an abundant number, since it is smaller than the sum of its proper divisors (91017978).

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

65012790 is a wasteful number, since it uses less digits than its factorization.

65012790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167103.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 65012790 is about 8063.0509114106. The cubic root of 65012790 is about 402.0989459665.

The spelling of 65012790 in words is "sixty-five million, twelve thousand, seven hundred ninety".