745741979 has 4 divisors (see below), whose sum is σ = 746077584. Its totient is φ = 745406376.

The previous prime is 745741973. The next prime is 745742021. The reversal of 745741979 is 979147547.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 745741979 - 2²⁴ = 728964763 is a prime.

It is a super-2 number, since 2×745741979² = 1112262198485672882, which contains 22 as substring.

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 745741979.

It is not an unprimeable number, because it can be changed into a prime (745741973) 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, 164447 + ... + 168920.

It is an arithmetic number, because the mean of its divisors is an integer number (186519396).

Almost surely, 2^745741979 is an apocalyptic number.

745741979 is a deficient number, since it is larger than the sum of its proper divisors (335605).

745741979 is a wasteful number, since it uses less digits than its factorization.

745741979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335604.

The product of its digits is 2222640, while the sum is 53.

The square root of 745741979 is about 27308.2767490005. The cubic root of 745741979 is about 906.8376238478.

The spelling of 745741979 in words is "seven hundred forty-five million, seven hundred forty-one thousand, nine hundred seventy-nine".