61942197 has 16 divisors (see below), whose sum is σ = 86394240. Its totient is φ = 39476096.

The previous prime is 61942187. The next prime is 61942201. The reversal of 61942197 is 79124916.

It is not a de Polignac number, because 61942197 - 2¹² = 61938101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61942187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35653 + ... + 37349.

It is an arithmetic number, because the mean of its divisors is an integer number (5399640).

Almost surely, 2^61942197 is an apocalyptic number.

It is an amenable number.

61942197 is a deficient number, since it is larger than the sum of its proper divisors (24452043).

61942197 is an equidigital number, since it uses as much as digits as its factorization.

61942197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769 (or 1723 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 61942197 is about 7870.3365239359. The cubic root of 61942197 is about 395.6661237946. Note that the first 3 decimals are identical.

The spelling of 61942197 in words is "sixty-one million, nine hundred forty-two thousand, one hundred ninety-seven".