61972874 has 8 divisors (see below), whose sum is σ = 93358980. Its totient is φ = 30853216.

The previous prime is 61972873. The next prime is 61972877. The reversal of 61972874 is 47827916.

It can be written as a sum of positive squares in 2 ways, for example, as 50310649 + 11662225 = 7093^2 + 3415^2 .

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

It is a super-2 number, since 2×61972874² = 7681274223639752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61972873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66029 + ... + 66960.

Almost surely, 2^61972874 is an apocalyptic number.

61972874 is a deficient number, since it is larger than the sum of its proper divisors (31386106).

61972874 is a wasteful number, since it uses less digits than its factorization.

61972874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133224.

The product of its digits is 169344, while the sum is 44.

The square root of 61972874 is about 7872.2851828424. The cubic root of 61972874 is about 395.7314311674.

The spelling of 61972874 in words is "sixty-one million, nine hundred seventy-two thousand, eight hundred seventy-four".