90706742 has 12 divisors (see below), whose sum is σ = 158274180. Its totient is φ = 38874276.

The previous prime is 90706717. The next prime is 90706769. The reversal of 90706742 is 24760709.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 462692 + ... + 462887.

It is an arithmetic number, because the mean of its divisors is an integer number (13189515).

Almost surely, 2^90706742 is an apocalyptic number.

90706742 is a deficient number, since it is larger than the sum of its proper divisors (67567438).

90706742 is a wasteful number, since it uses less digits than its factorization.

90706742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925595 (or 925588 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 90706742 is about 9524.0087148217. The cubic root of 90706742 is about 449.3104533947.

The spelling of 90706742 in words is "ninety million, seven hundred six thousand, seven hundred forty-two".