90906852 has 12 divisors (see below), whose sum is σ = 212116016. Its totient is φ = 30302280.

The previous prime is 90906841. The next prime is 90906853. The reversal of 90906852 is 25860909.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 90906852.

It is not an unprimeable number, because it can be changed into a prime (90906853) 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, 3787774 + ... + 3787797.

Almost surely, 2^90906852 is an apocalyptic number.

It is an amenable number.

90906852 is an abundant number, since it is smaller than the sum of its proper divisors (121209164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90906852 is a wasteful number, since it uses less digits than its factorization.

90906852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7575578 (or 7575576 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 90906852 is about 9534.5084823498. The cubic root of 90906852 is about 449.6406217123.

The spelling of 90906852 in words is "ninety million, nine hundred six thousand, eight hundred fifty-two".