90660202 has 8 divisors (see below), whose sum is σ = 136051812. Its totient is φ = 45309600.

The previous prime is 90660173. The next prime is 90660209. The reversal of 90660202 is 20206609.

It can be written as a sum of positive squares in 2 ways, for example, as 90611361 + 48841 = 9519^2 + 221^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (90660209) 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, 3949 + ... + 14032.

Almost surely, 2^90660202 is an apocalyptic number.

90660202 is a deficient number, since it is larger than the sum of its proper divisors (45391610).

90660202 is a wasteful number, since it uses less digits than its factorization.

90660202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20504.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 90660202 is about 9521.5651024398. The cubic root of 90660202 is about 449.2335958741.

The spelling of 90660202 in words is "ninety million, six hundred sixty thousand, two hundred two".