83347690 has 12 divisors (see below), whose sum is σ = 150077826. Its totient is φ = 33327528.

The previous prime is 83347673. The next prime is 83347697. The reversal of 83347690 is 9674338.

It can be written as a sum of positive squares in only one way, i.e., 75012921 + 8334769 = 8661^2 + 2887^2 .

It is a super-2 number, since 2×83347690² = 13893674856672200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83347697) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27427 + ... + 30313.

Almost surely, 2^83347690 is an apocalyptic number.

83347690 is a deficient number, since it is larger than the sum of its proper divisors (66730136).

83347690 is an frugal number, since it uses more digits than its factorization.

83347690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5781 (or 2894 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 83347690 is about 9129.4956049061. The cubic root of 83347690 is about 436.8153143349.

Multiplying 83347690 by its sum of digits (40), we get a square (3333907600 = 57740²).

The spelling of 83347690 in words is "eighty-three million, three hundred forty-seven thousand, six hundred ninety".