90909941 has 4 divisors (see below), whose sum is σ = 91272384. Its totient is φ = 90547500.

The previous prime is 90909919. The next prime is 90909979. The reversal of 90909941 is 14990909.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14990909 = 503 ⋅29803.

It is a cyclic number.

It is not a de Polignac number, because 90909941 - 2⁶ = 90909877 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 (90909901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180845 + ... + 181346.

It is an arithmetic number, because the mean of its divisors is an integer number (22818096).

Almost surely, 2^90909941 is an apocalyptic number.

It is an amenable number.

90909941 is a deficient number, since it is larger than the sum of its proper divisors (362443).

90909941 is a wasteful number, since it uses less digits than its factorization.

90909941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362442.

The product of its (nonzero) digits is 26244, while the sum is 41.

The square root of 90909941 is about 9534.6704714951. The cubic root of 90909941 is about 449.6457145596.

The spelling of 90909941 in words is "ninety million, nine hundred nine thousand, nine hundred forty-one".