61693601 has 4 divisors (see below), whose sum is σ = 62292672. Its totient is φ = 61094532.

The previous prime is 61693591. The next prime is 61693607. The reversal of 61693601 is 10639616.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61693601 - 2²² = 57499297 is a prime.

It is a super-2 number, since 2×61693601² = 7612200808694402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61693607) 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, 299381 + ... + 299586.

It is an arithmetic number, because the mean of its divisors is an integer number (15573168).

Almost surely, 2^61693601 is an apocalyptic number.

It is an amenable number.

61693601 is a deficient number, since it is larger than the sum of its proper divisors (599071).

61693601 is a wasteful number, since it uses less digits than its factorization.

61693601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599070.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 61693601 is about 7854.5274205391. The cubic root of 61693601 is about 395.1360979504.

The spelling of 61693601 in words is "sixty-one million, six hundred ninety-three thousand, six hundred one".