505890967 has 2 divisors, whose sum is σ = 505890968. Its totient is φ = 505890966.

The previous prime is 505890961. The next prime is 505891013. The reversal of 505890967 is 769098505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505890967 - 2²³ = 497502359 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 505890967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505890961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252945483 + 252945484.

It is an arithmetic number, because the mean of its divisors is an integer number (252945484).

Almost surely, 2^505890967 is an apocalyptic number.

505890967 is a deficient number, since it is larger than the sum of its proper divisors (1).

505890967 is an equidigital number, since it uses as much as digits as its factorization.

505890967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 505890967 is about 22492.0200737951. The cubic root of 505890967 is about 796.8054727026.

The spelling of 505890967 in words is "five hundred five million, eight hundred ninety thousand, nine hundred sixty-seven".