65949087 has 4 divisors (see below), whose sum is σ = 87932120. Its totient is φ = 43966056.

The previous prime is 65949067. The next prime is 65949109. The reversal of 65949087 is 78094956.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 65949087 - 2⁷ = 65948959 is a prime.

It is a super-2 number, since 2×65949087² = 8698564152267138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65949047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10991512 + ... + 10991517.

It is an arithmetic number, because the mean of its divisors is an integer number (21983030).

Almost surely, 2^65949087 is an apocalyptic number.

65949087 is a deficient number, since it is larger than the sum of its proper divisors (21983033).

65949087 is a wasteful number, since it uses less digits than its factorization.

65949087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21983032.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 65949087 is about 8120.9043215642. The cubic root of 65949087 is about 404.0200603541.

The spelling of 65949087 in words is "sixty-five million, nine hundred forty-nine thousand, eighty-seven".