46921001 has 2 divisors, whose sum is σ = 46921002. Its totient is φ = 46921000.

The previous prime is 46920997. The next prime is 46921019. The reversal of 46921001 is 10012964.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46566976 + 354025 = 6824^2 + 595^2 .

It is a cyclic number.

It is not a de Polignac number, because 46921001 - 2² = 46920997 is a prime.

It is equal to p_2827211 and since 46921001 and 2827211 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (46921201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23460500 + 23460501.

It is an arithmetic number, because the mean of its divisors is an integer number (23460501).

Almost surely, 2^46921001 is an apocalyptic number.

It is an amenable number.

46921001 is a deficient number, since it is larger than the sum of its proper divisors (1).

46921001 is an equidigital number, since it uses as much as digits as its factorization.

46921001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 46921001 is about 6849.8905830677. The cubic root of 46921001 is about 360.6803005443.

Adding to 46921001 its reverse (10012964), we get a palindrome (56933965).

The spelling of 46921001 in words is "forty-six million, nine hundred twenty-one thousand, one".