61858632 has 64 divisors (see below), whose sum is σ = 171927360. Its totient is φ = 18387200.

The previous prime is 61858619. The next prime is 61858673. The reversal of 61858632 is 23685816.

It is a happy number.

It is a super-2 number, since 2×61858632² = 7652980705822848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11782 + ... + 16202.

It is an arithmetic number, because the mean of its divisors is an integer number (2686365).

Almost surely, 2^61858632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61858632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85963680).

61858632 is an abundant number, since it is smaller than the sum of its proper divisors (110068728).

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

61858632 is a wasteful number, since it uses less digits than its factorization.

61858632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4494 (or 4490 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 61858632 is about 7865.0258740833. The cubic root of 61858632 is about 395.4881152588.

The spelling of 61858632 in words is "sixty-one million, eight hundred fifty-eight thousand, six hundred thirty-two".