83788061 has 4 divisors (see below), whose sum is σ = 95757792. Its totient is φ = 71818332.

The previous prime is 83788049. The next prime is 83788063. The reversal of 83788061 is 16088738.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83788061 - 2⁶ = 83787997 is a prime.

It is a super-2 number, since 2×83788061² = 14040878332279442, 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 (83788063) 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, 5984855 + ... + 5984868.

It is an arithmetic number, because the mean of its divisors is an integer number (23939448).

Almost surely, 2^83788061 is an apocalyptic number.

It is an amenable number.

83788061 is a deficient number, since it is larger than the sum of its proper divisors (11969731).

83788061 is a wasteful number, since it uses less digits than its factorization.

83788061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11969730.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 83788061 is about 9153.5818672255. The cubic root of 83788061 is about 437.5832740533.

The spelling of 83788061 in words is "eighty-three million, seven hundred eighty-eight thousand, sixty-one".