731687051 has 2 divisors, whose sum is σ = 731687052. Its totient is φ = 731687050.

The previous prime is 731687027. The next prime is 731687053. The reversal of 731687051 is 150786137.

731687051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 731687051 - 2¹⁸ = 731424907 is a prime.

Together with 731687053, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_37806761 and since 731687051 and 37806761 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 731686996 and 731687014.

It is not a weakly prime, because it can be changed into another prime (731687053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365843525 + 365843526.

It is an arithmetic number, because the mean of its divisors is an integer number (365843526).

Almost surely, 2^731687051 is an apocalyptic number.

731687051 is a deficient number, since it is larger than the sum of its proper divisors (1).

731687051 is an equidigital number, since it uses as much as digits as its factorization.

731687051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 731687051 is about 27049.7144347219. The cubic root of 731687051 is about 901.1044264637.

The spelling of 731687051 in words is "seven hundred thirty-one million, six hundred eighty-seven thousand, fifty-one".