85723502 has 4 divisors (see below), whose sum is σ = 128585256. Its totient is φ = 42861750.

The previous prime is 85723481. The next prime is 85723523. The reversal of 85723502 is 20532758.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (85723481) and next prime (85723523).

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, 21430874 + ... + 21430877.

It is an arithmetic number, because the mean of its divisors is an integer number (32146314).

Almost surely, 2^85723502 is an apocalyptic number.

85723502 is a deficient number, since it is larger than the sum of its proper divisors (42861754).

85723502 is a wasteful number, since it uses less digits than its factorization.

85723502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42861753.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 85723502 is about 9258.6987206626. The cubic root of 85723502 is about 440.9269404871.

The spelling of 85723502 in words is "eighty-five million, seven hundred twenty-three thousand, five hundred two".