91420435 has 8 divisors (see below), whose sum is σ = 110000880. Its totient is φ = 72938784.

The previous prime is 91420409. The next prime is 91420471. The reversal of 91420435 is 53402419.

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

It is a cyclic number.

It is not a de Polignac number, because 91420435 - 2⁵ = 91420403 is a prime.

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, 22645 + ... + 26374.

It is an arithmetic number, because the mean of its divisors is an integer number (13750110).

Almost surely, 2^91420435 is an apocalyptic number.

91420435 is a deficient number, since it is larger than the sum of its proper divisors (18580445).

91420435 is a wasteful number, since it uses less digits than its factorization.

91420435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49397.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 91420435 is about 9561.4034011750. The cubic root of 91420435 is about 450.4857881460.

The spelling of 91420435 in words is "ninety-one million, four hundred twenty thousand, four hundred thirty-five".