61870806 has 24 divisors (see below), whose sum is σ = 134198064. Its totient is φ = 20601360.

The previous prime is 61870801. The next prime is 61870811. The reversal of 61870806 is 60807816.

It is an interprime number because it is at equal distance from previous prime (61870801) and next prime (61870811).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61870801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32316 + ... + 34176.

It is an arithmetic number, because the mean of its divisors is an integer number (5591586).

Almost surely, 2^61870806 is an apocalyptic number.

61870806 is an abundant number, since it is smaller than the sum of its proper divisors (72327258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61870806 is a wasteful number, since it uses less digits than its factorization.

61870806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3716 (or 3713 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 61870806 is about 7865.7997686186. The cubic root of 61870806 is about 395.5140580488.

The spelling of 61870806 in words is "sixty-one million, eight hundred seventy thousand, eight hundred six".