90678701 has 4 divisors (see below), whose sum is σ = 92787552. Its totient is φ = 88569852.

The previous prime is 90678691. The next prime is 90678703. The reversal of 90678701 is 10787609.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-90678701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90678703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1054361 + ... + 1054446.

It is an arithmetic number, because the mean of its divisors is an integer number (23196888).

Almost surely, 2^90678701 is an apocalyptic number.

It is an amenable number.

90678701 is a deficient number, since it is larger than the sum of its proper divisors (2108851).

90678701 is a wasteful number, since it uses less digits than its factorization.

90678701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108850.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 90678701 is about 9522.5364793210. The cubic root of 90678701 is about 449.2641488141.

The spelling of 90678701 in words is "ninety million, six hundred seventy-eight thousand, seven hundred one".