61936901 has 8 divisors (see below), whose sum is σ = 66767064. Its totient is φ = 57116160.

The previous prime is 61936883. The next prime is 61936939. The reversal of 61936901 is 10963916.

It is a Cunningham number, because it is equal to 7870²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 9156676 + 52780225 = 3026^2 + 7265^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 61936901 - 2¹⁸ = 61674757 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61936951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17645 + ... + 20861.

It is an arithmetic number, because the mean of its divisors is an integer number (8345883).

Almost surely, 2^61936901 is an apocalyptic number.

It is an amenable number.

61936901 is a deficient number, since it is larger than the sum of its proper divisors (4830163).

61936901 is a wasteful number, since it uses less digits than its factorization.

61936901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4711.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 61936901 is about 7870.0000635324. Note that the first 4 decimals coincide. The cubic root of 61936901 is about 395.6548471118.

The spelling of 61936901 in words is "sixty-one million, nine hundred thirty-six thousand, nine hundred one".