90078694 has 16 divisors (see below), whose sum is σ = 139618080. Its totient is φ = 43563520.

The previous prime is 90078673. The next prime is 90078719. The reversal of 90078694 is 49687009.

It is a super-2 number, since 2×90078694² = 16228342225491272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90078694.

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, 1542 + ... + 13510.

It is an arithmetic number, because the mean of its divisors is an integer number (8726130).

Almost surely, 2^90078694 is an apocalyptic number.

90078694 is a deficient number, since it is larger than the sum of its proper divisors (49539386).

90078694 is a wasteful number, since it uses less digits than its factorization.

90078694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12095.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 90078694 is about 9490.9796122424. The cubic root of 90078694 is about 448.2710512961.

The spelling of 90078694 in words is "ninety million, seventy-eight thousand, six hundred ninety-four".