91740490 has 16 divisors (see below), whose sum is σ = 165255552. Its totient is φ = 36668944.

The previous prime is 91740463. The next prime is 91740527. The reversal of 91740490 is 9404719.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15987 + ... + 20953.

It is an arithmetic number, because the mean of its divisors is an integer number (10328472).

Almost surely, 2^91740490 is an apocalyptic number.

91740490 is a deficient number, since it is larger than the sum of its proper divisors (73515062).

91740490 is a wasteful number, since it uses less digits than its factorization.

91740490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6821.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 91740490 is about 9578.1255995106. The cubic root of 91740490 is about 451.0108797234.

The spelling of 91740490 in words is "ninety-one million, seven hundred forty thousand, four hundred ninety".