84691903 has 4 divisors (see below), whose sum is σ = 84713608. Its totient is φ = 84670200.

The previous prime is 84691889. The next prime is 84691951. The reversal of 84691903 is 30919648.

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

It is a cyclic number.

It is not a de Polignac number, because 84691903 - 2¹⁷ = 84560831 is a prime.

It is a super-2 number, since 2×84691903² = 14345436867522818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84691993) 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, 3201 + ... + 13402.

It is an arithmetic number, because the mean of its divisors is an integer number (21178402).

Almost surely, 2^84691903 is an apocalyptic number.

84691903 is a deficient number, since it is larger than the sum of its proper divisors (21705).

84691903 is a wasteful number, since it uses less digits than its factorization.

84691903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21704.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 84691903 is about 9202.8203829044. The cubic root of 84691903 is about 439.1510887627.

The spelling of 84691903 in words is "eighty-four million, six hundred ninety-one thousand, nine hundred three".