61683070 has 32 divisors (see below), whose sum is σ = 116712288. Its totient is φ = 23442048.

The previous prime is 61683049. The next prime is 61683071. The reversal of 61683070 is 7038616.

It is a super-2 number, since 2×61683070² = 7609602249249800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61683071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13972 + ... + 17848.

It is an arithmetic number, because the mean of its divisors is an integer number (3647259).

Almost surely, 2^61683070 is an apocalyptic number.

61683070 is a deficient number, since it is larger than the sum of its proper divisors (55029218).

61683070 is a wasteful number, since it uses less digits than its factorization.

61683070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 61683070 is about 7853.8570142319. The cubic root of 61683070 is about 395.1136136356.

The spelling of 61683070 in words is "sixty-one million, six hundred eighty-three thousand, seventy".