742279953 has 4 divisors (see below), whose sum is σ = 989706608. Its totient is φ = 494853300.

The previous prime is 742279927. The next prime is 742279957. The reversal of 742279953 is 359972247.

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 not a de Polignac number, because 742279953 - 2⁵ = 742279921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742279957) 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, 123713323 + ... + 123713328.

It is an arithmetic number, because the mean of its divisors is an integer number (247426652).

Almost surely, 2^742279953 is an apocalyptic number.

It is an amenable number.

742279953 is a deficient number, since it is larger than the sum of its proper divisors (247426655).

742279953 is a wasteful number, since it uses less digits than its factorization.

742279953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247426654.

The product of its digits is 952560, while the sum is 48.

The square root of 742279953 is about 27244.8151581177. The cubic root of 742279953 is about 905.4321483419.

The spelling of 742279953 in words is "seven hundred forty-two million, two hundred seventy-nine thousand, nine hundred fifty-three".