65692989 has 12 divisors (see below), whose sum is σ = 95037696. Its totient is φ = 43727112.

The previous prime is 65692973. The next prime is 65692993. The reversal of 65692989 is 98929656.

It is not a de Polignac number, because 65692989 - 2⁴ = 65692973 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65692969) 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, 804 + ... + 11490.

It is an arithmetic number, because the mean of its divisors is an integer number (7919808).

Almost surely, 2^65692989 is an apocalyptic number.

It is an amenable number.

65692989 is a deficient number, since it is larger than the sum of its proper divisors (29344707).

65692989 is a wasteful number, since it uses less digits than its factorization.

65692989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11376 (or 11373 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 65692989 is about 8105.1211588723. The cubic root of 65692989 is about 403.4964091756.

The spelling of 65692989 in words is "sixty-five million, six hundred ninety-two thousand, nine hundred eighty-nine".