46491637 has 2 divisors, whose sum is σ = 46491638. Its totient is φ = 46491636.

The previous prime is 46491623. The next prime is 46491649. The reversal of 46491637 is 73619464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32421636 + 14070001 = 5694^2 + 3751^2 .

It is a cyclic number.

It is not a de Polignac number, because 46491637 - 2¹¹ = 46489589 is a prime.

It is a super-2 number, since 2×46491637² = 4322944621879538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 46491637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46491667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23245818 + 23245819.

It is an arithmetic number, because the mean of its divisors is an integer number (23245819).

Almost surely, 2^46491637 is an apocalyptic number.

It is an amenable number.

46491637 is a deficient number, since it is larger than the sum of its proper divisors (1).

46491637 is an equidigital number, since it uses as much as digits as its factorization.

46491637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 46491637 is about 6818.4776160078. The cubic root of 46491637 is about 359.5767582602.

The spelling of 46491637 in words is "forty-six million, four hundred ninety-one thousand, six hundred thirty-seven".