61471870 has 32 divisors (see below), whose sum is σ = 116043840. Its totient is φ = 23400960.

The previous prime is 61471831. The next prime is 61471873. The reversal of 61471870 is 7817416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61471873) 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, 54876 + ... + 55984.

It is an arithmetic number, because the mean of its divisors is an integer number (3626370).

Almost surely, 2^61471870 is an apocalyptic number.

61471870 is a deficient number, since it is larger than the sum of its proper divisors (54571970).

61471870 is a wasteful number, since it uses less digits than its factorization.

61471870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 61471870 is about 7840.3998622519. The cubic root of 61471870 is about 394.6621476851.

The spelling of 61471870 in words is "sixty-one million, four hundred seventy-one thousand, eight hundred seventy".