84900749 has 4 divisors (see below), whose sum is σ = 85854780. Its totient is φ = 83946720.

The previous prime is 84900743. The next prime is 84900757. The reversal of 84900749 is 94700948.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6666724 + 78234025 = 2582^2 + 8845^2 .

It is a cyclic number.

It is not a de Polignac number, because 84900749 - 2¹² = 84896653 is a prime.

It is a super-2 number, since 2×84900749² = 14416274361522002, 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 (84900743) 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, 476882 + ... + 477059.

It is an arithmetic number, because the mean of its divisors is an integer number (21463695).

Almost surely, 2^84900749 is an apocalyptic number.

84900749 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

84900749 is a deficient number, since it is larger than the sum of its proper divisors (954031).

84900749 is an equidigital number, since it uses as much as digits as its factorization.

84900749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954030.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 84900749 is about 9214.1602438855. The cubic root of 84900749 is about 439.5117673321.

The spelling of 84900749 in words is "eighty-four million, nine hundred thousand, seven hundred forty-nine".