731000761 has 8 divisors (see below), whose sum is σ = 739175360. Its totient is φ = 722853072.

The previous prime is 731000717. The next prime is 731000771. The reversal of 731000761 is 167000137.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 731000761 - 2¹⁹ = 730476473 is a prime.

It is a super-2 number, since 2×731000761² = 1068724225165158242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (731000701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50596 + ... + 63418.

It is an arithmetic number, because the mean of its divisors is an integer number (92396920).

Almost surely, 2^731000761 is an apocalyptic number.

It is an amenable number.

731000761 is a deficient number, since it is larger than the sum of its proper divisors (8174599).

731000761 is a wasteful number, since it uses less digits than its factorization.

731000761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13455.

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 731000761 is about 27037.0257424888. The cubic root of 731000761 is about 900.8226063392.

Adding to 731000761 its reverse (167000137), we get a palindrome (898000898).

The spelling of 731000761 in words is "seven hundred thirty-one million, seven hundred sixty-one", and thus it is an aban number.