91270038 has 16 divisors (see below), whose sum is σ = 182640240. Its totient is φ = 30406656.

The previous prime is 91270027. The next prime is 91270063. The reversal of 91270038 is 83007219.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 91269987 and 91270014.

It is a congruent number.

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, 13306 + ... + 18962.

It is an arithmetic number, because the mean of its divisors is an integer number (11415015).

Almost surely, 2^91270038 is an apocalyptic number.

91270038 is an abundant number, since it is smaller than the sum of its proper divisors (91370202).

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

91270038 is a wasteful number, since it uses less digits than its factorization.

91270038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8351.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 91270038 is about 9553.5353665541. The cubic root of 91270038 is about 450.2386191253.

The spelling of 91270038 in words is "ninety-one million, two hundred seventy thousand, thirty-eight".