461878537 has 2 divisors, whose sum is σ = 461878538. Its totient is φ = 461878536.

The previous prime is 461878531. The next prime is 461878567. The reversal of 461878537 is 735878164.

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., 459202041 + 2676496 = 21429^2 + 1636^2 .

It is a cyclic number.

It is not a de Polignac number, because 461878537 - 2⁷ = 461878409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (461878531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230939268 + 230939269.

It is an arithmetic number, because the mean of its divisors is an integer number (230939269).

Almost surely, 2^461878537 is an apocalyptic number.

It is an amenable number.

461878537 is a deficient number, since it is larger than the sum of its proper divisors (1).

461878537 is an equidigital number, since it uses as much as digits as its factorization.

461878537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1128960, while the sum is 49.

The square root of 461878537 is about 21491.3595893792. The cubic root of 461878537 is about 772.9936515809.

The spelling of 461878537 in words is "four hundred sixty-one million, eight hundred seventy-eight thousand, five hundred thirty-seven".