61086492 has 72 divisors (see below), whose sum is σ = 161021952. Its totient is φ = 19504800.

The previous prime is 61086481. The next prime is 61086497. The reversal of 61086492 is 29468016.

61086492 is a `hidden beast` number, since 6 + 1 + 0 + 8 + 649 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61086497) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141517 + ... + 141947.

It is an arithmetic number, because the mean of its divisors is an integer number (2236416).

Almost surely, 2^61086492 is an apocalyptic number.

61086492 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61086492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80510976).

61086492 is an abundant number, since it is smaller than the sum of its proper divisors (99935460).

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

61086492 is a wasteful number, since it uses less digits than its factorization.

61086492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 61086492 is about 7815.7847974468. The cubic root of 61086492 is about 393.8356826385.

The spelling of 61086492 in words is "sixty-one million, eighty-six thousand, four hundred ninety-two".