46821899 has 2 divisors, whose sum is σ = 46821900. Its totient is φ = 46821898.

The previous prime is 46821881. The next prime is 46821919. The reversal of 46821899 is 99812864.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46821899 is a prime.

It is not a weakly prime, because it can be changed into another prime (46821839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23410949 + 23410950.

It is an arithmetic number, because the mean of its divisors is an integer number (23410950).

Almost surely, 2^46821899 is an apocalyptic number.

46821899 is a deficient number, since it is larger than the sum of its proper divisors (1).

46821899 is an equidigital number, since it uses as much as digits as its factorization.

46821899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 47.

The square root of 46821899 is about 6842.6529211995. The cubic root of 46821899 is about 360.4261902095.

The spelling of 46821899 in words is "forty-six million, eight hundred twenty-one thousand, eight hundred ninety-nine".