61997914 has 16 divisors (see below), whose sum is σ = 102967776. Its totient is φ = 27759600.

The previous prime is 61997891. The next prime is 61997917. The reversal of 61997914 is 41979916.

It is not an unprimeable number, because it can be changed into a prime (61997917) 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, 19557 + ... + 22504.

It is an arithmetic number, because the mean of its divisors is an integer number (6435486).

Almost surely, 2^61997914 is an apocalyptic number.

61997914 is a deficient number, since it is larger than the sum of its proper divisors (40969862).

61997914 is a wasteful number, since it uses less digits than its factorization.

61997914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42141.

The product of its digits is 122472, while the sum is 46.

The square root of 61997914 is about 7873.8754117652. The cubic root of 61997914 is about 395.7847221215.

The spelling of 61997914 in words is "sixty-one million, nine hundred ninety-seven thousand, nine hundred fourteen".