72383757 has 4 divisors (see below), whose sum is σ = 96511680. Its totient is φ = 48255836.

The previous prime is 72383699. The next prime is 72383809. The reversal of 72383757 is 75738327.

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 72383757 - 2¹⁰ = 72382733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72383057) 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, 12063957 + ... + 12063962.

It is an arithmetic number, because the mean of its divisors is an integer number (24127920).

Almost surely, 2^72383757 is an apocalyptic number.

It is an amenable number.

72383757 is a deficient number, since it is larger than the sum of its proper divisors (24127923).

72383757 is a wasteful number, since it uses less digits than its factorization.

72383757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24127922.

The product of its digits is 246960, while the sum is 42.

The square root of 72383757 is about 8507.8644206405. The cubic root of 72383757 is about 416.7545726706.

The spelling of 72383757 in words is "seventy-two million, three hundred eighty-three thousand, seven hundred fifty-seven".