405012983 has 2 divisors, whose sum is σ = 405012984. Its totient is φ = 405012982.

The previous prime is 405012967. The next prime is 405013031. The reversal of 405012983 is 389210504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 405012983 - 2⁴ = 405012967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405012943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202506491 + 202506492.

It is an arithmetic number, because the mean of its divisors is an integer number (202506492).

Almost surely, 2^405012983 is an apocalyptic number.

405012983 is a deficient number, since it is larger than the sum of its proper divisors (1).

405012983 is an equidigital number, since it uses as much as digits as its factorization.

405012983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 405012983 is about 20124.9343601414. The cubic root of 405012983 is about 739.8715280990.

The spelling of 405012983 in words is "four hundred five million, twelve thousand, nine hundred eighty-three".