46856921 has 2 divisors, whose sum is σ = 46856922. Its totient is φ = 46856920.

The previous prime is 46856899. The next prime is 46856939. The reversal of 46856921 is 12965864.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46730896 + 126025 = 6836^2 + 355^2 .

It is a cyclic number.

It is not a de Polignac number, because 46856921 - 2¹⁴ = 46840537 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (46852921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23428460 + 23428461.

It is an arithmetic number, because the mean of its divisors is an integer number (23428461).

Almost surely, 2^46856921 is an apocalyptic number.

It is an amenable number.

46856921 is a deficient number, since it is larger than the sum of its proper divisors (1).

46856921 is an equidigital number, since it uses as much as digits as its factorization.

46856921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 41.

The square root of 46856921 is about 6845.2115380023. The cubic root of 46856921 is about 360.5160320740.

The spelling of 46856921 in words is "forty-six million, eight hundred fifty-six thousand, nine hundred twenty-one".