61724652 has 24 divisors (see below), whose sum is σ = 157117632. Its totient is φ = 18704400.

The previous prime is 61724647. The next prime is 61724657. The reversal of 61724652 is 25642716.

It is an interprime number because it is at equal distance from previous prime (61724647) and next prime (61724657).

It is a super-2 number, since 2×61724652² = 7619865329042208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (61724657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233674 + ... + 233937.

It is an arithmetic number, because the mean of its divisors is an integer number (6546568).

Almost surely, 2^61724652 is an apocalyptic number.

It is an amenable number.

61724652 is an abundant number, since it is smaller than the sum of its proper divisors (95392980).

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

61724652 is a wasteful number, since it uses less digits than its factorization.

61724652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467629 (or 467627 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 61724652 is about 7856.5038025829. The cubic root of 61724652 is about 395.2023788014.

The spelling of 61724652 in words is "sixty-one million, seven hundred twenty-four thousand, six hundred fifty-two".