61660893 has 8 divisors (see below), whose sum is σ = 93959488. Its totient is φ = 35234784.

The previous prime is 61660867. The next prime is 61660903. The reversal of 61660893 is 39806616.

It is a happy number.

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

It is not a de Polignac number, because 61660893 - 2⁸ = 61660637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61660793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1468096 + ... + 1468137.

It is an arithmetic number, because the mean of its divisors is an integer number (11744936).

Almost surely, 2^61660893 is an apocalyptic number.

It is an amenable number.

61660893 is a deficient number, since it is larger than the sum of its proper divisors (32298595).

61660893 is a wasteful number, since it uses less digits than its factorization.

61660893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936243.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 61660893 is about 7852.4450332365. The cubic root of 61660893 is about 395.0662560438.

The spelling of 61660893 in words is "sixty-one million, six hundred sixty thousand, eight hundred ninety-three".