74772473 has 4 divisors (see below), whose sum is σ = 75719040. Its totient is φ = 73825908.

The previous prime is 74772463. The next prime is 74772487. The reversal of 74772473 is 37427747.

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 74772473 - 2⁴ = 74772457 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 74772473.

It is not an unprimeable number, because it can be changed into a prime (74772433) 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, 473165 + ... + 473322.

It is an arithmetic number, because the mean of its divisors is an integer number (18929760).

Almost surely, 2^74772473 is an apocalyptic number.

It is an amenable number.

74772473 is a deficient number, since it is larger than the sum of its proper divisors (946567).

74772473 is an equidigital number, since it uses as much as digits as its factorization.

74772473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946566.

The product of its digits is 230496, while the sum is 41.

The square root of 74772473 is about 8647.1077823744. The cubic root of 74772473 is about 421.2894480047.

The spelling of 74772473 in words is "seventy-four million, seven hundred seventy-two thousand, four hundred seventy-three".