65986942 has 16 divisors (see below), whose sum is σ = 113235552. Its totient is φ = 28251360.

The previous prime is 65986939. The next prime is 65986951. The reversal of 65986942 is 24968956.

It is a super-2 number, since 2×65986942² = 8708553029022728, which contains 22 as substring.

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, 17628 + ... + 21040.

It is an arithmetic number, because the mean of its divisors is an integer number (7077222).

Almost surely, 2^65986942 is an apocalyptic number.

65986942 is a deficient number, since it is larger than the sum of its proper divisors (47248610).

65986942 is a wasteful number, since it uses less digits than its factorization.

65986942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4803.

The product of its digits is 933120, while the sum is 49.

The square root of 65986942 is about 8123.2347005365. The cubic root of 65986942 is about 404.0973485305.

The spelling of 65986942 in words is "sixty-five million, nine hundred eighty-six thousand, nine hundred forty-two".