90913814 has 4 divisors (see below), whose sum is σ = 136370724. Its totient is φ = 45456906.

The previous prime is 90913813. The next prime is 90913829. The reversal of 90913814 is 41831909.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90913813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22728452 + ... + 22728455.

It is an arithmetic number, because the mean of its divisors is an integer number (34092681).

Almost surely, 2^90913814 is an apocalyptic number.

90913814 is a deficient number, since it is larger than the sum of its proper divisors (45456910).

90913814 is a wasteful number, since it uses less digits than its factorization.

90913814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45456909.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 90913814 is about 9534.8735702158. The cubic root of 90913814 is about 449.6520998280.

The spelling of 90913814 in words is "ninety million, nine hundred thirteen thousand, eight hundred fourteen".