749023979 has 8 divisors (see below), whose sum is σ = 825208560. Its totient is φ = 674188000.

The previous prime is 749023973. The next prime is 749023981. The reversal of 749023979 is 979320947.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-749023979 is a prime.

It is a super-2 number, since 2×749023979² = 1122073842233984882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (749023973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335984 + ... + 338205.

It is an arithmetic number, because the mean of its divisors is an integer number (103151070).

Almost surely, 2^749023979 is an apocalyptic number.

749023979 is a deficient number, since it is larger than the sum of its proper divisors (76184581).

749023979 is a wasteful number, since it uses less digits than its factorization.

749023979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674301.

The product of its (nonzero) digits is 857304, while the sum is 50.

The square root of 749023979 is about 27368.3024500973. The cubic root of 749023979 is about 908.1660035812.

The spelling of 749023979 in words is "seven hundred forty-nine million, twenty-three thousand, nine hundred seventy-nine".