61439662 has 8 divisors (see below), whose sum is σ = 92263392. Its totient is φ = 30685200.

The previous prime is 61439659. The next prime is 61439681. The reversal of 61439662 is 26693416.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 15039 + ... + 18682.

It is an arithmetic number, because the mean of its divisors is an integer number (11532924).

Almost surely, 2^61439662 is an apocalyptic number.

61439662 is a deficient number, since it is larger than the sum of its proper divisors (30823730).

61439662 is a wasteful number, since it uses less digits than its factorization.

61439662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34634.

The product of its digits is 46656, while the sum is 37.

The square root of 61439662 is about 7838.3456162637. The cubic root of 61439662 is about 394.5932082981.

The spelling of 61439662 in words is "sixty-one million, four hundred thirty-nine thousand, six hundred sixty-two".