747891742 has 32 divisors (see below), whose sum is σ = 1251663840. Its totient is φ = 332935680.

The previous prime is 747891731. The next prime is 747891751. The reversal of 747891742 is 247198747.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90933 + ... + 98815.

It is an arithmetic number, because the mean of its divisors is an integer number (39114495).

Almost surely, 2^747891742 is an apocalyptic number.

747891742 is a deficient number, since it is larger than the sum of its proper divisors (503772098).

747891742 is a wasteful number, since it uses less digits than its factorization.

747891742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8028.

The product of its digits is 790272, while the sum is 49.

The square root of 747891742 is about 27347.6094384866. The cubic root of 747891742 is about 907.7081732460.

The spelling of 747891742 in words is "seven hundred forty-seven million, eight hundred ninety-one thousand, seven hundred forty-two".