749896501 has 4 divisors (see below), whose sum is σ = 770164012. Its totient is φ = 729628992.

The previous prime is 749896487. The next prime is 749896507. The reversal of 749896501 is 105698947.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 638572900 + 111323601 = 25270^2 + 10551^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-749896501 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749896507) 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, 10133700 + ... + 10133773.

It is an arithmetic number, because the mean of its divisors is an integer number (192541003).

Almost surely, 2^749896501 is an apocalyptic number.

It is an amenable number.

749896501 is a deficient number, since it is larger than the sum of its proper divisors (20267511).

749896501 is a wasteful number, since it uses less digits than its factorization.

749896501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20267510.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 749896501 is about 27384.2381854964. The cubic root of 749896501 is about 908.5185011236.

The spelling of 749896501 in words is "seven hundred forty-nine million, eight hundred ninety-six thousand, five hundred one".