72761423 has 6 divisors (see below), whose sum is σ = 84640896. Its totient is φ = 62366892.

The previous prime is 72761417. The next prime is 72761441. The reversal of 72761423 is 32416727.

It is not a de Polignac number, because 72761423 - 2¹⁴ = 72745039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72761423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72761023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 742415 + ... + 742512.

It is an arithmetic number, because the mean of its divisors is an integer number (14106816).

Almost surely, 2^72761423 is an apocalyptic number.

72761423 is a deficient number, since it is larger than the sum of its proper divisors (11879473).

72761423 is a wasteful number, since it uses less digits than its factorization.

72761423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484941 (or 1484934 counting only the distinct ones).

The product of its digits is 14112, while the sum is 32.

The square root of 72761423 is about 8530.0306564514. The cubic root of 72761423 is about 417.4781285828.

The spelling of 72761423 in words is "seventy-two million, seven hundred sixty-one thousand, four hundred twenty-three".