749894231 has 4 divisors (see below), whose sum is σ = 782498352. Its totient is φ = 717290112.

The previous prime is 749894227. The next prime is 749894239. The reversal of 749894231 is 132498947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132498947 = 7 ⋅18928421.

It is a cyclic number.

It is not a de Polignac number, because 749894231 - 2² = 749894227 is a prime.

It is a super-2 number, since 2×749894231² = 1124682715374162722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749894239) 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, 16302026 + ... + 16302071.

It is an arithmetic number, because the mean of its divisors is an integer number (195624588).

Almost surely, 2^749894231 is an apocalyptic number.

749894231 is a deficient number, since it is larger than the sum of its proper divisors (32604121).

749894231 is a wasteful number, since it uses less digits than its factorization.

749894231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32604120.

The product of its digits is 435456, while the sum is 47.

The square root of 749894231 is about 27384.1967382649. The cubic root of 749894231 is about 908.5175844020.

The spelling of 749894231 in words is "seven hundred forty-nine million, eight hundred ninety-four thousand, two hundred thirty-one".