90940930 has 8 divisors (see below), whose sum is σ = 163693692. Its totient is φ = 36376368.

The previous prime is 90940907. The next prime is 90940933. The reversal of 90940930 is 3904909.

It can be written as a sum of positive squares in 2 ways, for example, as 81558961 + 9381969 = 9031^2 + 3063^2 .

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 (90940933) 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, 4547037 + ... + 4547056.

Almost surely, 2^90940930 is an apocalyptic number.

90940930 is a deficient number, since it is larger than the sum of its proper divisors (72752762).

90940930 is a wasteful number, since it uses less digits than its factorization.

90940930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9094100.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 90940930 is about 9536.2954023038. The cubic root of 90940930 is about 449.6967998715.

The spelling of 90940930 in words is "ninety million, nine hundred forty thousand, nine hundred thirty".