61699942 has 8 divisors (see below), whose sum is σ = 95051376. Its totient is φ = 30016152.

The previous prime is 61699927. The next prime is 61699949. The reversal of 61699942 is 24999616.

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 = 61699892 and 61699901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61699949) by changing a digit.

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, 416818 + ... + 416965.

It is an arithmetic number, because the mean of its divisors is an integer number (11881422).

Almost surely, 2^61699942 is an apocalyptic number.

61699942 is a deficient number, since it is larger than the sum of its proper divisors (33351434).

61699942 is a wasteful number, since it uses less digits than its factorization.

61699942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833822.

The product of its digits is 209952, while the sum is 46.

The square root of 61699942 is about 7854.9310627147. The cubic root of 61699942 is about 395.1496351305.

The spelling of 61699942 in words is "sixty-one million, six hundred ninety-nine thousand, nine hundred forty-two".