91416642 has 32 divisors (see below), whose sum is σ = 189820800. Its totient is φ = 29315328.

The previous prime is 91416631. The next prime is 91416643. The reversal of 91416642 is 24661419.

It is not an unprimeable number, because it can be changed into a prime (91416643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57859 + ... + 59417.

It is an arithmetic number, because the mean of its divisors is an integer number (5931900).

Almost surely, 2^91416642 is an apocalyptic number.

91416642 is an abundant number, since it is smaller than the sum of its proper divisors (98404158).

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

91416642 is a wasteful number, since it uses less digits than its factorization.

91416642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930.

The product of its digits is 10368, while the sum is 33.

The square root of 91416642 is about 9561.2050495740. The cubic root of 91416642 is about 450.4795578970.

The spelling of 91416642 in words is "ninety-one million, four hundred sixteen thousand, six hundred forty-two".