90894939 has 4 divisors (see below), whose sum is σ = 121193256. Its totient is φ = 60596624.

The previous prime is 90894929. The next prime is 90894949. The reversal of 90894939 is 93949809.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (90894929) and next prime (90894949).

It is a cyclic number.

It is not a de Polignac number, because 90894939 - 2¹¹ = 90892891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90894891 and 90894900.

It is not an unprimeable number, because it can be changed into a prime (90894929) 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, 15149154 + ... + 15149159.

It is an arithmetic number, because the mean of its divisors is an integer number (30298314).

Almost surely, 2^90894939 is an apocalyptic number.

90894939 is a deficient number, since it is larger than the sum of its proper divisors (30298317).

90894939 is a wasteful number, since it uses less digits than its factorization.

90894939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30298316.

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 90894939 is about 9533.8837311979. The cubic root of 90894939 is about 449.6209796185.

It can be divided in two parts, 9089 and 4939, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 90894939 in words is "ninety million, eight hundred ninety-four thousand, nine hundred thirty-nine".