61662742 has 8 divisors (see below), whose sum is σ = 92878632. Its totient is φ = 30703200.

The previous prime is 61662721. The next prime is 61662749. The reversal of 61662742 is 24726616.

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

It is a junction number, because it is equal to n+sod(n) for n = 61662698 and 61662707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61662749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63484 + ... + 64447.

It is an arithmetic number, because the mean of its divisors is an integer number (11609829).

Almost surely, 2^61662742 is an apocalyptic number.

61662742 is a deficient number, since it is larger than the sum of its proper divisors (31215890).

61662742 is a wasteful number, since it uses less digits than its factorization.

61662742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128174.

The product of its digits is 24192, while the sum is 34.

The square root of 61662742 is about 7852.5627663840. The cubic root of 61662742 is about 395.0702049012.

The spelling of 61662742 in words is "sixty-one million, six hundred sixty-two thousand, seven hundred forty-two".