940721747 has 8 divisors (see below), whose sum is σ = 1097052000. Its totient is φ = 806332632.

The previous prime is 940721729. The next prime is 940721773. The reversal of 940721747 is 747127049.

It is not a de Polignac number, because 940721747 - 2⁸ = 940721491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (940721797) 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, 1370972 + ... + 1371657.

It is an arithmetic number, because the mean of its divisors is an integer number (137131500).

Almost surely, 2^940721747 is an apocalyptic number.

940721747 is a deficient number, since it is larger than the sum of its proper divisors (156330253).

940721747 is an equidigital number, since it uses as much as digits as its factorization.

940721747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2742650 (or 2742636 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 940721747 is about 30671.1875707479. The cubic root of 940721747 is about 979.8367585242.

The spelling of 940721747 in words is "nine hundred forty million, seven hundred twenty-one thousand, seven hundred forty-seven".