72046489 has 4 divisors (see below), whose sum is σ = 72488656. Its totient is φ = 71604324.

The previous prime is 72046487. The next prime is 72046523. The reversal of 72046489 is 98464027.

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 72046489 - 2¹ = 72046487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72046487) 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, 220839 + ... + 221164.

It is an arithmetic number, because the mean of its divisors is an integer number (18122164).

Almost surely, 2^72046489 is an apocalyptic number.

It is an amenable number.

72046489 is a deficient number, since it is larger than the sum of its proper divisors (442167).

72046489 is a wasteful number, since it uses less digits than its factorization.

72046489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442166.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 72046489 is about 8488.0203227843. The cubic root of 72046489 is about 416.1062833249.

The spelling of 72046489 in words is "seventy-two million, forty-six thousand, four hundred eighty-nine".