72377089 has 4 divisors (see below), whose sum is σ = 72465856. Its totient is φ = 72288324.

The previous prime is 72377083. The next prime is 72377093. The reversal of 72377089 is 98077327.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98077327 = 8219 ⋅11933.

It is a cyclic number.

It is not a de Polignac number, because 72377089 - 2⁷ = 72376961 is a prime.

It is a super-2 number, since 2×72377089² = 10476886024227842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72377083) 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, 43149 + ... + 44794.

It is an arithmetic number, because the mean of its divisors is an integer number (18116464).

Almost surely, 2^72377089 is an apocalyptic number.

It is an amenable number.

72377089 is a deficient number, since it is larger than the sum of its proper divisors (88767).

72377089 is an equidigital number, since it uses as much as digits as its factorization.

72377089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88766.

The product of its (nonzero) digits is 148176, while the sum is 43.

The square root of 72377089 is about 8507.4725388919. The cubic root of 72377089 is about 416.7417751179.

The spelling of 72377089 in words is "seventy-two million, three hundred seventy-seven thousand, eighty-nine".