65672957 has 8 divisors (see below), whose sum is σ = 75118656. Its totient is φ = 56243232.

The previous prime is 65672933. The next prime is 65672983. The reversal of 65672957 is 75927656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65672957 - 2¹⁴ = 65656573 is a prime.

It is a super-2 number, since 2×65672957² = 8625874562247698, 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 (65672557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6758 + ... + 13304.

It is an arithmetic number, because the mean of its divisors is an integer number (9389832).

Almost surely, 2^65672957 is an apocalyptic number.

It is an amenable number.

65672957 is a deficient number, since it is larger than the sum of its proper divisors (9445699).

65672957 is a wasteful number, since it uses less digits than its factorization.

65672957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7987.

The product of its digits is 793800, while the sum is 47.

The square root of 65672957 is about 8103.8853027421. The cubic root of 65672957 is about 403.4553918011.

The spelling of 65672957 in words is "sixty-five million, six hundred seventy-two thousand, nine hundred fifty-seven".