706161731 has 8 divisors (see below), whose sum is σ = 771021504. Its totient is φ = 641412520.

The previous prime is 706161719. The next prime is 706161749. The reversal of 706161731 is 137161607.

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 706161731 - 2⁶ = 706161667 is a prime.

It is a super-2 number, since 2×706161731² = 997328780657832722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (706161931) 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, 13985 + ... + 40098.

It is an arithmetic number, because the mean of its divisors is an integer number (96377688).

Almost surely, 2^706161731 is an apocalyptic number.

706161731 is a deficient number, since it is larger than the sum of its proper divisors (64859773).

706161731 is a wasteful number, since it uses less digits than its factorization.

706161731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55281.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 706161731 is about 26573.7037501361. The cubic root of 706161731 is about 890.5016449836.

The spelling of 706161731 in words is "seven hundred six million, one hundred sixty-one thousand, seven hundred thirty-one".