85491544 has 32 divisors (see below), whose sum is σ = 164455920. Its totient is φ = 41648256.

The previous prime is 85491479. The next prime is 85491563. The reversal of 85491544 is 44519458.

It is a junction number, because it is equal to n+sod(n) for n = 85491497 and 85491506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68494 + ... + 69730.

Almost surely, 2^85491544 is an apocalyptic number.

It is an amenable number.

85491544 is a deficient number, since it is larger than the sum of its proper divisors (78964376).

85491544 is a wasteful number, since it uses less digits than its factorization.

85491544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459 (or 1455 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 85491544 is about 9246.1637450350. The cubic root of 85491544 is about 440.5288819332.

The spelling of 85491544 in words is "eighty-five million, four hundred ninety-one thousand, five hundred forty-four".