83030621 has 8 divisors (see below), whose sum is σ = 87935424. Its totient is φ = 78233760.

The previous prime is 83030611. The next prime is 83030639. The reversal of 83030621 is 12603038.

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

It is a cyclic number.

It is not a de Polignac number, because 83030621 - 2¹⁴ = 83014237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83030611) 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, 25400 + ... + 28481.

It is an arithmetic number, because the mean of its divisors is an integer number (10991928).

Almost surely, 2^83030621 is an apocalyptic number.

It is an amenable number.

83030621 is a deficient number, since it is larger than the sum of its proper divisors (4904803).

83030621 is a wasteful number, since it uses less digits than its factorization.

83030621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53971.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 83030621 is about 9112.1139698755. The cubic root of 83030621 is about 436.2607035083.

Adding to 83030621 its reverse (12603038), we get a palindrome (95633659).

The spelling of 83030621 in words is "eighty-three million, thirty thousand, six hundred twenty-one".