90472100 has 18 divisors (see below), whose sum is σ = 196324674. Its totient is φ = 36188800.

The previous prime is 90472099. The next prime is 90472121. The reversal of 90472100 is 127409.

It can be written as a sum of positive squares in 3 ways, for example, as 5721664 + 84750436 = 2392^2 + 9206^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 452261 + ... + 452460.

Almost surely, 2^90472100 is an apocalyptic number.

It is an amenable number.

90472100 is an abundant number, since it is smaller than the sum of its proper divisors (105852574).

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

90472100 is a wasteful number, since it uses less digits than its factorization.

90472100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904735 (or 904728 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 90472100 is about 9511.6822907412. The cubic root of 90472100 is about 448.9226904459.

Adding to 90472100 its reverse (127409), we get a palindrome (90599509).

The spelling of 90472100 in words is "ninety million, four hundred seventy-two thousand, one hundred".