8725724 has 18 divisors (see below), whose sum is σ = 17763480. Its totient is φ = 3739512.

The previous prime is 8725699. The next prime is 8725733. The reversal of 8725724 is 4275278.

It is a super-2 number, since 2×8725724² = 152276518648352, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22064 + ... + 22455.

It is an arithmetic number, because the mean of its divisors is an integer number (986860).

Almost surely, 2^8725724 is an apocalyptic number.

It is an amenable number.

8725724 is an abundant number, since it is smaller than the sum of its proper divisors (9037756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8725724 is a wasteful number, since it uses less digits than its factorization.

8725724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44537 (or 44528 counting only the distinct ones).

The product of its digits is 31360, while the sum is 35.

The square root of 8725724 is about 2953.9336485439. The cubic root of 8725724 is about 205.8735202485.

It can be divided in two parts, 8725 and 724, that added together give a palindrome (9449).

The spelling of 8725724 in words is "eight million, seven hundred twenty-five thousand, seven hundred twenty-four".