61969197 has 8 divisors (see below), whose sum is σ = 83041600. Its totient is φ = 41104800.

The previous prime is 61969183. The next prime is 61969213. The reversal of 61969197 is 79196916.

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

It is not a de Polignac number, because 61969197 - 2⁴ = 61969181 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 (61969147) 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, 51304 + ... + 52497.

It is an arithmetic number, because the mean of its divisors is an integer number (10380200).

Almost surely, 2^61969197 is an apocalyptic number.

It is an amenable number.

61969197 is a deficient number, since it is larger than the sum of its proper divisors (21072403).

61969197 is a wasteful number, since it uses less digits than its factorization.

61969197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104003.

The product of its digits is 183708, while the sum is 48.

The square root of 61969197 is about 7872.0516385501. The cubic root of 61969197 is about 395.7236044461.

The spelling of 61969197 in words is "sixty-one million, nine hundred sixty-nine thousand, one hundred ninety-seven".