83623402 has 4 divisors (see below), whose sum is σ = 125435106. Its totient is φ = 41811700.

The previous prime is 83623369. The next prime is 83623403. The reversal of 83623402 is 20432638.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 70073641 + 13549761 = 8371^2 + 3681^2 .

It is not an unprimeable number, because it can be changed into a prime (83623403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20905849 + ... + 20905852.

Almost surely, 2^83623402 is an apocalyptic number.

83623402 is a deficient number, since it is larger than the sum of its proper divisors (41811704).

83623402 is a wasteful number, since it uses less digits than its factorization.

83623402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41811703.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 83623402 is about 9144.5832053736. The cubic root of 83623402 is about 437.2964421206.

The spelling of 83623402 in words is "eighty-three million, six hundred twenty-three thousand, four hundred two".