61973961 has 16 divisors (see below), whose sum is σ = 94937088. Its totient is φ = 35226000.

The previous prime is 61973897. The next prime is 61973969. The reversal of 61973961 is 16937916.

It is not a de Polignac number, because 61973961 - 2⁶ = 61973897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61973969) 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, 3715 + ... + 11736.

It is an arithmetic number, because the mean of its divisors is an integer number (5933568).

Almost surely, 2^61973961 is an apocalyptic number.

It is an amenable number.

61973961 is a deficient number, since it is larger than the sum of its proper divisors (32963127).

61973961 is a wasteful number, since it uses less digits than its factorization.

61973961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15652.

The product of its digits is 61236, while the sum is 42.

The square root of 61973961 is about 7872.3542222133. The cubic root of 61973961 is about 395.7337448547.

The spelling of 61973961 in words is "sixty-one million, nine hundred seventy-three thousand, nine hundred sixty-one".