91413690 has 16 divisors (see below), whose sum is σ = 219392928. Its totient is φ = 24376976.

The previous prime is 91413671. The next prime is 91413697. The reversal of 91413690 is 9631419.

It is a super-2 number, since 2×91413690² = 16712925438832200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91413697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1523532 + ... + 1523591.

It is an arithmetic number, because the mean of its divisors is an integer number (13712058).

Almost surely, 2^91413690 is an apocalyptic number.

91413690 is an abundant number, since it is smaller than the sum of its proper divisors (127979238).

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

91413690 is a wasteful number, since it uses less digits than its factorization.

91413690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047133.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 91413690 is about 9561.0506744813. The cubic root of 91413690 is about 450.4747089259.

The spelling of 91413690 in words is "ninety-one million, four hundred thirteen thousand, six hundred ninety".