747609631 has 2 divisors, whose sum is σ = 747609632. Its totient is φ = 747609630.

The previous prime is 747609617. The next prime is 747609637. The reversal of 747609631 is 136906747.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 747609631 - 2¹¹ = 747607583 is a prime.

It is a super-2 number, since 2×747609631² = 1117840320727912322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (747609637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373804815 + 373804816.

It is an arithmetic number, because the mean of its divisors is an integer number (373804816).

Almost surely, 2^747609631 is an apocalyptic number.

747609631 is a deficient number, since it is larger than the sum of its proper divisors (1).

747609631 is an equidigital number, since it uses as much as digits as its factorization.

747609631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 747609631 is about 27342.4510788627. The cubic root of 747609631 is about 907.5940271958.

The spelling of 747609631 in words is "seven hundred forty-seven million, six hundred nine thousand, six hundred thirty-one".