61470830 has 32 divisors (see below), whose sum is σ = 116674560. Its totient is φ = 23283360.

The previous prime is 61470817. The next prime is 61470839. The reversal of 61470830 is 3807416.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61470793 and 61470802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61470839) 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, 12461 + ... + 16679.

It is an arithmetic number, because the mean of its divisors is an integer number (3646080).

Almost surely, 2^61470830 is an apocalyptic number.

61470830 is a deficient number, since it is larger than the sum of its proper divisors (55203730).

61470830 is a wasteful number, since it uses less digits than its factorization.

61470830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4304.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 61470830 is about 7840.3335388235. Note that the first 3 decimals coincide. The cubic root of 61470830 is about 394.6599220007.

The spelling of 61470830 in words is "sixty-one million, four hundred seventy thousand, eight hundred thirty".