749123977 has 8 divisors (see below), whose sum is σ = 856685376. Its totient is φ = 641698512.

The previous prime is 749123933. The next prime is 749123983. The reversal of 749123977 is 779321947.

749123977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-749123977 is a prime.

It is a super-2 number, since 2×749123977² = 1122373465832593058, 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 749123977.

It is not an unprimeable number, because it can be changed into a prime (749123917) 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, 21883 + ... + 44464.

It is an arithmetic number, because the mean of its divisors is an integer number (107085672).

Almost surely, 2^749123977 is an apocalyptic number.

It is an amenable number.

749123977 is a deficient number, since it is larger than the sum of its proper divisors (107561399).

749123977 is a wasteful number, since it uses less digits than its factorization.

749123977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67967.

The product of its digits is 666792, while the sum is 49.

The square root of 749123977 is about 27370.1292835821. The cubic root of 749123977 is about 908.2064165032.

The spelling of 749123977 in words is "seven hundred forty-nine million, one hundred twenty-three thousand, nine hundred seventy-seven".