85407928 has 16 divisors (see below), whose sum is σ = 162855000. Its totient is φ = 41979936.

The previous prime is 85407919. The next prime is 85407937. The reversal of 85407928 is 82970458.

It is an interprime number because it is at equal distance from previous prime (85407919) and next prime (85407937).

It is a congruent number.

It is an unprimeable number.

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, 90003 + ... + 90946.

Almost surely, 2^85407928 is an apocalyptic number.

It is an amenable number.

85407928 is a deficient number, since it is larger than the sum of its proper divisors (77447072).

85407928 is a wasteful number, since it uses less digits than its factorization.

85407928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181014 (or 181010 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 85407928 is about 9241.6409798260. The cubic root of 85407928 is about 440.3852136168.

The spelling of 85407928 in words is "eighty-five million, four hundred seven thousand, nine hundred twenty-eight".