83630390 has 32 divisors (see below), whose sum is σ = 156311424. Its totient is φ = 32192640.

The previous prime is 83630311. The next prime is 83630401. The reversal of 83630390 is 9303638.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27212 + ... + 30128.

It is an arithmetic number, because the mean of its divisors is an integer number (4884732).

Almost surely, 2^83630390 is an apocalyptic number.

83630390 is a deficient number, since it is larger than the sum of its proper divisors (72681034).

83630390 is a wasteful number, since it uses less digits than its factorization.

83630390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3032.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 83630390 is about 9144.9652815087. The cubic root of 83630390 is about 437.3086226919.

The spelling of 83630390 in words is "eighty-three million, six hundred thirty thousand, three hundred ninety".