46397909 has 2 divisors, whose sum is σ = 46397910. Its totient is φ = 46397908.

The previous prime is 46397893. The next prime is 46397929. The reversal of 46397909 is 90979364.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29669809 + 16728100 = 5447^2 + 4090^2 .

It is a cyclic number.

It is not a de Polignac number, because 46397909 - 2⁴ = 46397893 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46397929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23198954 + 23198955.

It is an arithmetic number, because the mean of its divisors is an integer number (23198955).

Almost surely, 2^46397909 is an apocalyptic number.

It is an amenable number.

46397909 is a deficient number, since it is larger than the sum of its proper divisors (1).

46397909 is an equidigital number, since it uses as much as digits as its factorization.

46397909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 46397909 is about 6811.6010599565. The cubic root of 46397909 is about 359.3349578978.

The spelling of 46397909 in words is "forty-six million, three hundred ninety-seven thousand, nine hundred nine".