61479432 has 128 divisors (see below), whose sum is σ = 198201600. Its totient is φ = 17293824.

The previous prime is 61479427. The next prime is 61479433. The reversal of 61479432 is 23497416.

61479432 is a `hidden beast` number, since 614 + 7 + 9 + 4 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (61479433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110098 + ... + 110654.

It is an arithmetic number, because the mean of its divisors is an integer number (1548450).

Almost surely, 2^61479432 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 61479432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99100800).

61479432 is an abundant number, since it is smaller than the sum of its proper divisors (136722168).

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

61479432 is a wasteful number, since it uses less digits than its factorization.

61479432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652 (or 642 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 61479432 is about 7840.8820932342. The cubic root of 61479432 is about 394.6783302240.

The spelling of 61479432 in words is "sixty-one million, four hundred seventy-nine thousand, four hundred thirty-two".