90638119 has 8 divisors (see below), whose sum is σ = 106484112. Its totient is φ = 76059840.

The previous prime is 90638117. The next prime is 90638129. The reversal of 90638119 is 91183609.

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 90638119 - 2¹ = 90638117 is a prime.

It is a super-2 number, since 2×90638119² = 16430537231716322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90638117) 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, 316774 + ... + 317059.

It is an arithmetic number, because the mean of its divisors is an integer number (13310514).

Almost surely, 2^90638119 is an apocalyptic number.

90638119 is a deficient number, since it is larger than the sum of its proper divisors (15845993).

90638119 is a wasteful number, since it uses less digits than its factorization.

90638119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633857.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 90638119 is about 9520.4054010320. The cubic root of 90638119 is about 449.1971181590.

Subtracting 90638119 from its reverse (91183609), we obtain a triangular number (545490 = T₁₀₄₄).

The spelling of 90638119 in words is "ninety million, six hundred thirty-eight thousand, one hundred nineteen".