46391857 has 2 divisors, whose sum is σ = 46391858. Its totient is φ = 46391856.

The previous prime is 46391843. The next prime is 46391887. The reversal of 46391857 is 75819364.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25816561 + 20575296 = 5081^2 + 4536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46391857 is a prime.

It is not a weakly prime, because it can be changed into another prime (46391837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23195928 + 23195929.

It is an arithmetic number, because the mean of its divisors is an integer number (23195929).

Almost surely, 2^46391857 is an apocalyptic number.

It is an amenable number.

46391857 is a deficient number, since it is larger than the sum of its proper divisors (1).

46391857 is an equidigital number, since it uses as much as digits as its factorization.

46391857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 46391857 is about 6811.1568033631. The cubic root of 46391857 is about 359.3193337043.

The spelling of 46391857 in words is "forty-six million, three hundred ninety-one thousand, eight hundred fifty-seven".