90420702 has 16 divisors (see below), whose sum is σ = 181655040. Its totient is φ = 30004632.

The previous prime is 90420697. The next prime is 90420749. The reversal of 90420702 is 20702409.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32452 + ... + 35127.

It is an arithmetic number, because the mean of its divisors is an integer number (11353440).

Almost surely, 2^90420702 is an apocalyptic number.

90420702 is an abundant number, since it is smaller than the sum of its proper divisors (91234338).

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

90420702 is a wasteful number, since it uses less digits than its factorization.

90420702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67807.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 90420702 is about 9508.9800714903. The cubic root of 90420702 is about 448.8376620254.

The spelling of 90420702 in words is "ninety million, four hundred twenty thousand, seven hundred two".