65977902 has 24 divisors (see below), whose sum is σ = 148247736. Its totient is φ = 21992472.

The previous prime is 65977843. The next prime is 65977909. The reversal of 65977902 is 20977956.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65977909) 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, 67393 + ... + 68364.

It is an arithmetic number, because the mean of its divisors is an integer number (6176989).

Almost surely, 2^65977902 is an apocalyptic number.

65977902 is an abundant number, since it is smaller than the sum of its proper divisors (82269834).

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

65977902 is a wasteful number, since it uses less digits than its factorization.

65977902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135774 (or 135762 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 65977902 is about 8122.6782528917. The cubic root of 65977902 is about 404.0788943397.

The spelling of 65977902 in words is "sixty-five million, nine hundred seventy-seven thousand, nine hundred two".