85102949 has 8 divisors (see below), whose sum is σ = 86448120. Its totient is φ = 83768256.

The previous prime is 85102939. The next prime is 85102951. The reversal of 85102949 is 94920158.

It can be written as a sum of positive squares in 4 ways, for example, as 16957924 + 68145025 = 4118^2 + 8255^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85102949 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 (85102909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14627 + ... + 19599.

It is an arithmetic number, because the mean of its divisors is an integer number (10806015).

Almost surely, 2^85102949 is an apocalyptic number.

It is an amenable number.

85102949 is a deficient number, since it is larger than the sum of its proper divisors (1345171).

85102949 is a wasteful number, since it uses less digits than its factorization.

85102949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5239.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 85102949 is about 9225.1259611997. The cubic root of 85102949 is about 439.8604050968.

The spelling of 85102949 in words is "eighty-five million, one hundred two thousand, nine hundred forty-nine".