3970692985 has 8 divisors (see below), whose sum is σ = 5445521856. Its totient is φ = 2722760880.

The previous prime is 3970692967. The next prime is 3970692989. The reversal of 3970692985 is 5892960793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3970692985 - 2¹⁷ = 3970561913 is a prime.

It is a super-2 number, since 2×3970692985² = 31532805562256420450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3970692989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56724151 + ... + 56724220.

It is an arithmetic number, because the mean of its divisors is an integer number (680690232).

Almost surely, 2^3970692985 is an apocalyptic number.

3970692985 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3970692985 is a deficient number, since it is larger than the sum of its proper divisors (1474828871).

3970692985 is a wasteful number, since it uses less digits than its factorization.

3970692985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113448383.

The product of its (nonzero) digits is 7348320, while the sum is 58.

The square root of 3970692985 is about 63013.4349563647. The cubic root of 3970692985 is about 1583.5147128377.

The spelling of 3970692985 in words is "three billion, nine hundred seventy million, six hundred ninety-two thousand, nine hundred eighty-five".