61670937 has 4 divisors (see below), whose sum is σ = 82227920. Its totient is φ = 41113956.

The previous prime is 61670923. The next prime is 61670953. The reversal of 61670937 is 73907616.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 61670937 - 2⁷ = 61670809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61670895 and 61670904.

It is not an unprimeable number, because it can be changed into a prime (61670977) 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, 10278487 + ... + 10278492.

It is an arithmetic number, because the mean of its divisors is an integer number (20556980).

Almost surely, 2^61670937 is an apocalyptic number.

It is an amenable number.

61670937 is a deficient number, since it is larger than the sum of its proper divisors (20556983).

61670937 is a wasteful number, since it uses less digits than its factorization.

61670937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20556982.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 61670937 is about 7853.0845532186. The cubic root of 61670937 is about 395.0877057821.

The spelling of 61670937 in words is "sixty-one million, six hundred seventy thousand, nine hundred thirty-seven".