90106757 has 8 divisors (see below), whose sum is σ = 97136760. Its totient is φ = 83090880.

The previous prime is 90106717. The next prime is 90106787. The reversal of 90106757 is 75760109.

It can be written as a sum of positive squares in 4 ways, for example, as 3876961 + 86229796 = 1969^2 + 9286^2 .

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 90106757 - 2¹⁶ = 90041221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90106717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12419 + ... + 18287.

It is an arithmetic number, because the mean of its divisors is an integer number (12142095).

Almost surely, 2^90106757 is an apocalyptic number.

It is an amenable number.

90106757 is a deficient number, since it is larger than the sum of its proper divisors (7030003).

90106757 is a wasteful number, since it uses less digits than its factorization.

90106757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7063.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 90106757 is about 9492.4579008811. The cubic root of 90106757 is about 448.3175977243.

The spelling of 90106757 in words is "ninety million, one hundred six thousand, seven hundred fifty-seven".