749346981 has 8 divisors (see below), whose sum is σ = 1010355840. Its totient is φ = 493951392.

The previous prime is 749346959. The next prime is 749347003. The reversal of 749346981 is 189643947.

It is an interprime number because it is at equal distance from previous prime (749346959) and next prime (749347003).

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

It is not a de Polignac number, because 749346981 - 2²⁵ = 715792549 is a prime.

It is a super-2 number, since 2×749346981² = 1123041795867628722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749346901) 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, 1403005 + ... + 1403538.

It is an arithmetic number, because the mean of its divisors is an integer number (126294480).

Almost surely, 2^749346981 is an apocalyptic number.

It is an amenable number.

749346981 is a deficient number, since it is larger than the sum of its proper divisors (261008859).

749346981 is a wasteful number, since it uses less digits than its factorization.

749346981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2806635.

The product of its digits is 1306368, while the sum is 51.

The square root of 749346981 is about 27374.2028377084. The cubic root of 749346981 is about 908.2965277870.

The spelling of 749346981 in words is "seven hundred forty-nine million, three hundred forty-six thousand, nine hundred eighty-one".