372739993 has 4 divisors (see below), whose sum is σ = 379057680. Its totient is φ = 366422308.

The previous prime is 372739981. The next prime is 372740021. The reversal of 372739993 is 399937273.

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 a de Polignac number, because none of the positive numbers 2^k-372739993 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 372739993.

It is not an unprimeable number, because it can be changed into a prime (372739963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3158755 + ... + 3158872.

It is an arithmetic number, because the mean of its divisors is an integer number (94764420).

Almost surely, 2^372739993 is an apocalyptic number.

It is an amenable number.

372739993 is a deficient number, since it is larger than the sum of its proper divisors (6317687).

372739993 is an equidigital number, since it uses as much as digits as its factorization.

372739993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6317686.

The product of its digits is 1928934, while the sum is 52.

The square root of 372739993 is about 19306.4754162949. The cubic root of 372739993 is about 719.6732011010.

The spelling of 372739993 in words is "three hundred seventy-two million, seven hundred thirty-nine thousand, nine hundred ninety-three".