714978739 has 4 divisors (see below), whose sum is σ = 715043056. Its totient is φ = 714914424.

The previous prime is 714978703. The next prime is 714978769. The reversal of 714978739 is 937879417.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 714978739 - 2²⁵ = 681424307 is a prime.

It is a super-2 number, since 2×714978739² = 1022389194444060242, 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 714978739.

It is not an unprimeable number, because it can be changed into a prime (714978769) 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, 10719 + ... + 39304.

It is an arithmetic number, because the mean of its divisors is an integer number (178760764).

Almost surely, 2^714978739 is an apocalyptic number.

714978739 is the 14293-rd nonagonal number.

714978739 is a deficient number, since it is larger than the sum of its proper divisors (64317).

714978739 is a wasteful number, since it uses less digits than its factorization.

714978739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64316.

The product of its digits is 2667168, while the sum is 55.

The square root of 714978739 is about 26739.0863531273. The cubic root of 714978739 is about 894.1925403620.

The spelling of 714978739 in words is "seven hundred fourteen million, nine hundred seventy-eight thousand, seven hundred thirty-nine".