61906870 has 16 divisors (see below), whose sum is σ = 111625200. Its totient is φ = 24719904.

The previous prime is 61906841. The next prime is 61906903. The reversal of 61906870 is 7860916.

It is a congruent number.

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, 1081 + ... + 11179.

It is an arithmetic number, because the mean of its divisors is an integer number (6976575).

Almost surely, 2^61906870 is an apocalyptic number.

61906870 is a deficient number, since it is larger than the sum of its proper divisors (49718330).

61906870 is a wasteful number, since it uses less digits than its factorization.

61906870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10719.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 61906870 is about 7868.0918906683. The cubic root of 61906870 is about 395.5908904537.

The spelling of 61906870 in words is "sixty-one million, nine hundred six thousand, eight hundred seventy".