72654893 has 4 divisors (see below), whose sum is σ = 72716988. Its totient is φ = 72592800.

The previous prime is 72654871. The next prime is 72654913. The reversal of 72654893 is 39845627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39845627 = 61 ⋅653207.

It can be written as a sum of positive squares in 2 ways, for example, as 11142244 + 61512649 = 3338^2 + 7843^2 .

It is a cyclic number.

It is not a de Polignac number, because 72654893 - 2²⁴ = 55877677 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 (72654833) 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, 29258 + ... + 31643.

It is an arithmetic number, because the mean of its divisors is an integer number (18179247).

Almost surely, 2^72654893 is an apocalyptic number.

It is an amenable number.

72654893 is a deficient number, since it is larger than the sum of its proper divisors (62095).

72654893 is a wasteful number, since it uses less digits than its factorization.

72654893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62094.

The product of its digits is 362880, while the sum is 44.

The square root of 72654893 is about 8523.7839601905. The cubic root of 72654893 is about 417.2742858246.

The spelling of 72654893 in words is "seventy-two million, six hundred fifty-four thousand, eight hundred ninety-three".