83070691 has 8 divisors (see below), whose sum is σ = 90716400. Its totient is φ = 75440640.

The previous prime is 83070671. The next prime is 83070719. The reversal of 83070691 is 19607038.

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

It is not a de Polignac number, because 83070691 - 2⁷ = 83070563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83070671) 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, 9075 + ... + 15763.

It is an arithmetic number, because the mean of its divisors is an integer number (11339550).

Almost surely, 2^83070691 is an apocalyptic number.

83070691 is a deficient number, since it is larger than the sum of its proper divisors (7645709).

83070691 is a wasteful number, since it uses less digits than its factorization.

83070691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7829.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 83070691 is about 9114.3124260692. The cubic root of 83070691 is about 436.3308710154.

The spelling of 83070691 in words is "eighty-three million, seventy thousand, six hundred ninety-one".