748996687 has 4 divisors (see below), whose sum is σ = 749328480. Its totient is φ = 748664896.

The previous prime is 748996649. The next prime is 748996691. The reversal of 748996687 is 786699847.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-748996687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748996607) 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, 162487 + ... + 167032.

It is an arithmetic number, because the mean of its divisors is an integer number (187332120).

Almost surely, 2^748996687 is an apocalyptic number.

748996687 is a deficient number, since it is larger than the sum of its proper divisors (331793).

748996687 is a wasteful number, since it uses less digits than its factorization.

748996687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331792.

The product of its digits is 36578304, while the sum is 64.

The square root of 748996687 is about 27367.8038395484. The cubic root of 748996687 is about 908.1549732411.

The spelling of 748996687 in words is "seven hundred forty-eight million, nine hundred ninety-six thousand, six hundred eighty-seven".