72363091 has 4 divisors (see below), whose sum is σ = 74858400. Its totient is φ = 69867784.

The previous prime is 72363079. The next prime is 72363103. The reversal of 72363091 is 19036327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19036327 = 829 ⋅22963.

It is an interprime number because it is at equal distance from previous prime (72363079) and next prime (72363103).

It is a cyclic number.

It is not a de Polignac number, because 72363091 - 2⁹ = 72362579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72363041) 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, 1247611 + ... + 1247668.

It is an arithmetic number, because the mean of its divisors is an integer number (18714600).

Almost surely, 2^72363091 is an apocalyptic number.

72363091 is a deficient number, since it is larger than the sum of its proper divisors (2495309).

72363091 is a wasteful number, since it uses less digits than its factorization.

72363091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495308.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 72363091 is about 8506.6498105894. The cubic root of 72363091 is about 416.7149069125.

The spelling of 72363091 in words is "seventy-two million, three hundred sixty-three thousand, ninety-one".