85354172 has 6 divisors (see below), whose sum is σ = 149369808. Its totient is φ = 42677084.

The previous prime is 85354147. The next prime is 85354187. The reversal of 85354172 is 27145358.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10669268 + ... + 10669275.

It is an arithmetic number, because the mean of its divisors is an integer number (24894968).

Almost surely, 2^85354172 is an apocalyptic number.

It is an amenable number.

85354172 is a deficient number, since it is larger than the sum of its proper divisors (64015636).

85354172 is a wasteful number, since it uses less digits than its factorization.

85354172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21338547 (or 21338545 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 85354172 is about 9238.7321641013. The cubic root of 85354172 is about 440.2928009782.

The spelling of 85354172 in words is "eighty-five million, three hundred fifty-four thousand, one hundred seventy-two".