46815997 has 2 divisors, whose sum is σ = 46815998. Its totient is φ = 46815996.

The previous prime is 46815961. The next prime is 46816009. The reversal of 46815997 is 79951864.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32024281 + 14791716 = 5659^2 + 3846^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46815997 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 46815997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46810997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23407998 + 23407999.

It is an arithmetic number, because the mean of its divisors is an integer number (23407999).

Almost surely, 2^46815997 is an apocalyptic number.

It is an amenable number.

46815997 is a deficient number, since it is larger than the sum of its proper divisors (1).

46815997 is an equidigital number, since it uses as much as digits as its factorization.

46815997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 49.

The square root of 46815997 is about 6842.2216421277. The cubic root of 46815997 is about 360.4110454104.

The spelling of 46815997 in words is "forty-six million, eight hundred fifteen thousand, nine hundred ninety-seven".