739672561 has 8 divisors (see below), whose sum is σ = 747849024. Its totient is φ = 731515440.

The previous prime is 739672553. The next prime is 739672589. The reversal of 739672561 is 165276937.

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 739672561 - 2³ = 739672553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (739672361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80190 + ... + 88936.

It is an arithmetic number, because the mean of its divisors is an integer number (93481128).

Almost surely, 2^739672561 is an apocalyptic number.

It is an amenable number.

739672561 is a deficient number, since it is larger than the sum of its proper divisors (8176463).

739672561 is a wasteful number, since it uses less digits than its factorization.

739672561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9671.

The product of its digits is 476280, while the sum is 46.

The square root of 739672561 is about 27196.9219030390. The cubic root of 739672561 is about 904.3707400856.

The spelling of 739672561 in words is "seven hundred thirty-nine million, six hundred seventy-two thousand, five hundred sixty-one".