61670873 has 16 divisors (see below), whose sum is σ = 69844992. Its totient is φ = 53946000.

The previous prime is 61670857. The next prime is 61670923. The reversal of 61670873 is 37807616.

It is a cyclic number.

It is not a de Polignac number, because 61670873 - 2⁴ = 61670857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61670803) 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, 75638 + ... + 76448.

It is an arithmetic number, because the mean of its divisors is an integer number (4365312).

Almost surely, 2^61670873 is an apocalyptic number.

It is an amenable number.

61670873 is a deficient number, since it is larger than the sum of its proper divisors (8174119).

61670873 is a wasteful number, since it uses less digits than its factorization.

61670873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 61670873 is about 7853.0804783855. The cubic root of 61670873 is about 395.0875691125.

The spelling of 61670873 in words is "sixty-one million, six hundred seventy thousand, eight hundred seventy-three".