61701641 has 8 divisors (see below), whose sum is σ = 62230080. Its totient is φ = 61175952.

The previous prime is 61701631. The next prime is 61701659. The reversal of 61701641 is 14610716.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61701641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61701641.

It is not an unprimeable number, because it can be changed into a prime (61701631) 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, 74015 + ... + 74843.

It is an arithmetic number, because the mean of its divisors is an integer number (7778760).

Almost surely, 2^61701641 is an apocalyptic number.

It is an amenable number.

61701641 is a deficient number, since it is larger than the sum of its proper divisors (528439).

61701641 is a wasteful number, since it uses less digits than its factorization.

61701641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 61701641 is about 7855.0392105960. The cubic root of 61701641 is about 395.1532621089.

The spelling of 61701641 in words is "sixty-one million, seven hundred one thousand, six hundred forty-one".