749971497 has 8 divisors (see below), whose sum is σ = 1090867680. Its totient is φ = 454528160.

The previous prime is 749971493. The next prime is 749971501. The reversal of 749971497 is 794179947.

It is an interprime number because it is at equal distance from previous prime (749971493) and next prime (749971501).

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

It is a cyclic number.

It is not a de Polignac number, because 749971497 - 2² = 749971493 is a prime.

It is not an unprimeable number, because it can be changed into a prime (749971493) 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, 11363172 + ... + 11363237.

It is an arithmetic number, because the mean of its divisors is an integer number (136358460).

Almost surely, 2^749971497 is an apocalyptic number.

It is an amenable number.

749971497 is a deficient number, since it is larger than the sum of its proper divisors (340896183).

749971497 is a wasteful number, since it uses less digits than its factorization.

749971497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22726423.

The product of its digits is 4000752, while the sum is 57.

The square root of 749971497 is about 27385.6074791121. The cubic root of 749971497 is about 908.5487866284.

The spelling of 749971497 in words is "seven hundred forty-nine million, nine hundred seventy-one thousand, four hundred ninety-seven".