85430949 has 4 divisors (see below), whose sum is σ = 113907936. Its totient is φ = 56953964.

The previous prime is 85430941. The next prime is 85430977. The reversal of 85430949 is 94903458.

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 85430949 - 2³ = 85430941 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 85430949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85430941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14238489 + ... + 14238494.

It is an arithmetic number, because the mean of its divisors is an integer number (28476984).

Almost surely, 2^85430949 is an apocalyptic number.

It is an amenable number.

85430949 is a deficient number, since it is larger than the sum of its proper divisors (28476987).

85430949 is a wasteful number, since it uses less digits than its factorization.

85430949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28476986.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 85430949 is about 9242.8863998212. The cubic root of 85430949 is about 440.4247774586.

The spelling of 85430949 in words is "eighty-five million, four hundred thirty thousand, nine hundred forty-nine".