72951293 has 4 divisors (see below), whose sum is σ = 73978848. Its totient is φ = 71923740.

The previous prime is 72951289. The next prime is 72951311. The reversal of 72951293 is 39215927.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72951293 - 2² = 72951289 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72951283) 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, 513671 + ... + 513812.

It is an arithmetic number, because the mean of its divisors is an integer number (18494712).

Almost surely, 2^72951293 is an apocalyptic number.

It is an amenable number.

72951293 is a deficient number, since it is larger than the sum of its proper divisors (1027555).

72951293 is a wasteful number, since it uses less digits than its factorization.

72951293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027554.

The product of its digits is 34020, while the sum is 38.

The square root of 72951293 is about 8541.1529081266. The cubic root of 72951293 is about 417.8409477821.

The spelling of 72951293 in words is "seventy-two million, nine hundred fifty-one thousand, two hundred ninety-three".