83407538 has 8 divisors (see below), whose sum is σ = 129425580. Its totient is φ = 40265680.

The previous prime is 83407529. The next prime is 83407553. The reversal of 83407538 is 83570438.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 75916369 + 7491169 = 8713^2 + 2737^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718973 + ... + 719088.

Almost surely, 2^83407538 is an apocalyptic number.

83407538 is a deficient number, since it is larger than the sum of its proper divisors (46018042).

83407538 is a wasteful number, since it uses less digits than its factorization.

83407538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438092.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 83407538 is about 9132.7727443532. The cubic root of 83407538 is about 436.9198413998.

The spelling of 83407538 in words is "eighty-three million, four hundred seven thousand, five hundred thirty-eight".