739631 has 2 divisors, whose sum is σ = 739632. Its totient is φ = 739630.

The previous prime is 739621. The next prime is 739633. The reversal of 739631 is 136937.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-739631 is a prime.

It is a super-2 number, since 2×739631² = 1094108032322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 739633, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 739594 and 739603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (739633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 369815 + 369816.

It is an arithmetic number, because the mean of its divisors is an integer number (369816).

2⁷³⁹⁶³¹ is an apocalyptic number.

739631 is a deficient number, since it is larger than the sum of its proper divisors (1).

739631 is an equidigital number, since it uses as much as digits as its factorization.

739631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3402, while the sum is 29.

The square root of 739631 is about 860.0180230670. The cubic root of 739631 is about 90.4353801394.

The spelling of 739631 in words is "seven hundred thirty-nine thousand, six hundred thirty-one".