3706691085 has 32 divisors (see below), whose sum is σ = 6629172480. Its totient is φ = 1965052224.

The previous prime is 3706691083. The next prime is 3706691113. The reversal of 3706691085 is 5801966073.

It is a happy number.

It is not a de Polignac number, because 3706691085 - 2¹ = 3706691083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3706691085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3706691081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59662 + ... + 104751.

It is an arithmetic number, because the mean of its divisors is an integer number (207161640).

Almost surely, 2^3706691085 is an apocalyptic number.

It is an amenable number.

3706691085 is a deficient number, since it is larger than the sum of its proper divisors (2922481395).

3706691085 is a wasteful number, since it uses less digits than its factorization.

3706691085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164594 (or 164588 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 3706691085 is about 60882.6008396488. The cubic root of 3706691085 is about 1547.6121519473.

The spelling of 3706691085 in words is "three billion, seven hundred six million, six hundred ninety-one thousand, eighty-five".