90461761 has 8 divisors (see below), whose sum is σ = 98386344. Its totient is φ = 82675200.

The previous prime is 90461753. The next prime is 90461771. The reversal of 90461761 is 16716409.

It can be written as a sum of positive squares in 4 ways, for example, as 18974736 + 71487025 = 4356^2 + 8455^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90461761 - 2³ = 90461753 is a prime.

It is a super-2 number, since 2×90461761² = 16366660406442242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90461731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33136 + ... + 35761.

It is an arithmetic number, because the mean of its divisors is an integer number (12298293).

Almost surely, 2^90461761 is an apocalyptic number.

It is an amenable number.

90461761 is a deficient number, since it is larger than the sum of its proper divisors (7924583).

90461761 is a wasteful number, since it uses less digits than its factorization.

90461761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69011.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 90461761 is about 9511.1387856555. The cubic root of 90461761 is about 448.9055890835.

The spelling of 90461761 in words is "ninety million, four hundred sixty-one thousand, seven hundred sixty-one".