749794551 has 32 divisors (see below), whose sum is σ = 1147115520. Its totient is φ = 431433600.

The previous prime is 749794547. The next prime is 749794553. The reversal of 749794551 is 155497947.

It is not a de Polignac number, because 749794551 - 2² = 749794547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 749794494 and 749794503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749794553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47305 + ... + 61133.

It is an arithmetic number, because the mean of its divisors is an integer number (35847360).

Almost surely, 2^749794551 is an apocalyptic number.

749794551 is a deficient number, since it is larger than the sum of its proper divisors (397320969).

749794551 is a wasteful number, since it uses less digits than its factorization.

749794551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13927.

The product of its digits is 1587600, while the sum is 51.

The square root of 749794551 is about 27382.3766499550. The cubic root of 749794551 is about 908.4773275933.

The spelling of 749794551 in words is "seven hundred forty-nine million, seven hundred ninety-four thousand, five hundred fifty-one".