72964951 has 4 divisors (see below), whose sum is σ = 73004632. Its totient is φ = 72925272.

The previous prime is 72964949. The next prime is 72964961. The reversal of 72964951 is 15946927.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15946927 = 31 ⋅514417.

It is a cyclic number.

It is not a de Polignac number, because 72964951 - 2¹ = 72964949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72964898 and 72964907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72964961) 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, 16941 + ... + 20806.

It is an arithmetic number, because the mean of its divisors is an integer number (18251158).

Almost surely, 2^72964951 is an apocalyptic number.

72964951 is a deficient number, since it is larger than the sum of its proper divisors (39681).

72964951 is a wasteful number, since it uses less digits than its factorization.

72964951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39680.

The product of its digits is 136080, while the sum is 43.

The square root of 72964951 is about 8541.9524114806. The cubic root of 72964951 is about 417.8670223282.

The spelling of 72964951 in words is "seventy-two million, nine hundred sixty-four thousand, nine hundred fifty-one".