746983561 has 9 divisors (see below), whose sum is σ = 756140679. Its totient is φ = 737937000.

The previous prime is 746983543. The next prime is 746983571. The reversal of 746983561 is 165389647.

The square root of 746983561 is 27331.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 8231161 + 738752400 = 2869^2 + 27180^2 .

It is not a de Polignac number, because 746983561 - 2⁵ = 746983529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (746983571) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4126891 + ... + 4127071.

It is an arithmetic number, because the mean of its divisors is an integer number (84015631).

Almost surely, 2^746983561 is an apocalyptic number.

746983561 is the 27331-st square number.

746983561 is the 13666-th centered octagonal number.

It is an amenable number.

746983561 is a deficient number, since it is larger than the sum of its proper divisors (9157118).

746983561 is an frugal number, since it uses more digits than its factorization.

746983561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664 (or 332 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 49.

The cubic root of 746983561 is about 907.3406079171.

Multiplying 746983561 by its sum of digits (49), we get a square (36602194489 = 191317²).

The spelling of 746983561 in words is "seven hundred forty-six million, nine hundred eighty-three thousand, five hundred sixty-one".