83964719 has 4 divisors (see below), whose sum is σ = 84749544. Its totient is φ = 83179896.

The previous prime is 83964703. The next prime is 83964721. The reversal of 83964719 is 91746938.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91746938 = 2 ⋅45873469.

It is a cyclic number.

It is not a de Polignac number, because 83964719 - 2⁴ = 83964703 is a prime.

It is a super-2 number, since 2×83964719² = 14100148073497922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83964779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392252 + ... + 392465.

It is an arithmetic number, because the mean of its divisors is an integer number (21187386).

Almost surely, 2^83964719 is an apocalyptic number.

83964719 is a deficient number, since it is larger than the sum of its proper divisors (784825).

83964719 is a wasteful number, since it uses less digits than its factorization.

83964719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784824.

The product of its digits is 326592, while the sum is 47.

The square root of 83964719 is about 9163.2264514198. The cubic root of 83964719 is about 437.8905903966.

The spelling of 83964719 in words is "eighty-three million, nine hundred sixty-four thousand, seven hundred nineteen".