738646731 has 6 divisors (see below), whose sum is σ = 1066934180. Its totient is φ = 492431148.

The previous prime is 738646729. The next prime is 738646739. The reversal of 738646731 is 137646837.

738646731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 738646731 - 2¹ = 738646729 is a prime.

It is a super-2 number, since 2×738646731² = 1091197986433972722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (738646739) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41035921 + ... + 41035938.

Almost surely, 2^738646731 is an apocalyptic number.

738646731 is a deficient number, since it is larger than the sum of its proper divisors (328287449).

738646731 is a wasteful number, since it uses less digits than its factorization.

738646731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82071865 (or 82071862 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 738646731 is about 27178.0560563113. The cubic root of 738646731 is about 903.9524649836.

The spelling of 738646731 in words is "seven hundred thirty-eight million, six hundred forty-six thousand, seven hundred thirty-one".