61983701 has 8 divisors (see below), whose sum is σ = 69053880. Its totient is φ = 55242432.

The previous prime is 61983673. The next prime is 61983743. The reversal of 61983701 is 10738916.

It can be written as a sum of positive squares in 4 ways, for example, as 12773476 + 49210225 = 3574^2 + 7015^2 .

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-61983701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61983001) 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, 81830 + ... + 82583.

It is an arithmetic number, because the mean of its divisors is an integer number (8631735).

Almost surely, 2^61983701 is an apocalyptic number.

It is an amenable number.

61983701 is a deficient number, since it is larger than the sum of its proper divisors (7070179).

61983701 is a wasteful number, since it uses less digits than its factorization.

61983701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164455.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 61983701 is about 7872.9728184467. The cubic root of 61983701 is about 395.7544753072.

The spelling of 61983701 in words is "sixty-one million, nine hundred eighty-three thousand, seven hundred one".