85970949 has 4 divisors (see below), whose sum is σ = 114627936. Its totient is φ = 57313964.

The previous prime is 85970947. The next prime is 85970957. The reversal of 85970949 is 94907958.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 85970949 - 2¹ = 85970947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85970947) 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, 14328489 + ... + 14328494.

It is an arithmetic number, because the mean of its divisors is an integer number (28656984).

Almost surely, 2^85970949 is an apocalyptic number.

It is an amenable number.

85970949 is a deficient number, since it is larger than the sum of its proper divisors (28656987).

85970949 is a wasteful number, since it uses less digits than its factorization.

85970949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28656986.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 85970949 is about 9272.0520382491. The cubic root of 85970949 is about 441.3507886086.

The spelling of 85970949 in words is "eighty-five million, nine hundred seventy thousand, nine hundred forty-nine".