46400839 has 2 divisors, whose sum is σ = 46400840. Its totient is φ = 46400838.

The previous prime is 46400813. The next prime is 46400863. The reversal of 46400839 is 93800464.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46400839 is a prime.

It is equal to p_2797702 and since 46400839 and 2797702 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46400539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23200419 + 23200420.

It is an arithmetic number, because the mean of its divisors is an integer number (23200420).

Almost surely, 2^46400839 is an apocalyptic number.

46400839 is a deficient number, since it is larger than the sum of its proper divisors (1).

46400839 is an equidigital number, since it uses as much as digits as its factorization.

46400839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 46400839 is about 6811.8161308127. The cubic root of 46400839 is about 359.3425216673.

The spelling of 46400839 in words is "forty-six million, four hundred thousand, eight hundred thirty-nine".