61670408 has 32 divisors (see below), whose sum is σ = 120288000. Its totient is φ = 29609280.

The previous prime is 61670393. The next prime is 61670417. The reversal of 61670408 is 80407616.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33578 + ... + 35366.

It is an arithmetic number, because the mean of its divisors is an integer number (3759000).

Almost surely, 2^61670408 is an apocalyptic number.

It is an amenable number.

61670408 is a deficient number, since it is larger than the sum of its proper divisors (58617592).

61670408 is a wasteful number, since it uses less digits than its factorization.

61670408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1965 (or 1961 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 61670408 is about 7853.0508721133. The cubic root of 61670408 is about 395.0865761198.

The spelling of 61670408 in words is "sixty-one million, six hundred seventy thousand, four hundred eight".