61858492 has 12 divisors (see below), whose sum is σ = 108336256. Its totient is φ = 30905280.

The previous prime is 61858483. The next prime is 61858507. The reversal of 61858492 is 29485816.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628 + ... + 11140.

Almost surely, 2^61858492 is an apocalyptic number.

It is an amenable number.

61858492 is a deficient number, since it is larger than the sum of its proper divisors (46477764).

61858492 is a wasteful number, since it uses less digits than its factorization.

61858492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11988 (or 11986 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 61858492 is about 7865.0169739168. The cubic root of 61858492 is about 395.4878168990.

The spelling of 61858492 in words is "sixty-one million, eight hundred fifty-eight thousand, four hundred ninety-two".