85013949 has 4 divisors (see below), whose sum is σ = 113351936. Its totient is φ = 56675964.

The previous prime is 85013947. The next prime is 85013983. The reversal of 85013949 is 94931058.

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 not a de Polignac number, because 85013949 - 2¹ = 85013947 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 (85013941) 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, 14168989 + ... + 14168994.

It is an arithmetic number, because the mean of its divisors is an integer number (28337984).

Almost surely, 2^85013949 is an apocalyptic number.

It is an amenable number.

85013949 is a deficient number, since it is larger than the sum of its proper divisors (28337987).

85013949 is a wasteful number, since it uses less digits than its factorization.

85013949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28337986.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 85013949 is about 9220.3009169983. The cubic root of 85013949 is about 439.7070174207.

The spelling of 85013949 in words is "eighty-five million, thirteen thousand, nine hundred forty-nine".