83993007 has 12 divisors (see below), whose sum is σ = 130275096. Its totient is φ = 47995920.

The previous prime is 83993003. The next prime is 83993011. The reversal of 83993007 is 70039938.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (83993003) and next prime (83993011).

It is not a de Polignac number, because 83993007 - 2² = 83993003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83993003) 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, 285544 + ... + 285837.

It is an arithmetic number, because the mean of its divisors is an integer number (10856258).

Almost surely, 2^83993007 is an apocalyptic number.

83993007 is a deficient number, since it is larger than the sum of its proper divisors (46282089).

83993007 is a wasteful number, since it uses less digits than its factorization.

83993007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571398 (or 571391 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 83993007 is about 9164.7698825448. The cubic root of 83993007 is about 437.9397604859.

The spelling of 83993007 in words is "eighty-three million, nine hundred ninety-three thousand, seven".