28196626 has 4 divisors (see below), whose sum is σ = 42294942. Its totient is φ = 14098312.

The previous prime is 28196621. The next prime is 28196629. The reversal of 28196626 is 62669182.

It is a happy number.

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., 27092025 + 1104601 = 5205^2 + 1051^2 .

It is not an unprimeable number, because it can be changed into a prime (28196621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7049155 + ... + 7049158.

Almost surely, 2^28196626 is an apocalyptic number.

28196626 is a deficient number, since it is larger than the sum of its proper divisors (14098316).

28196626 is a wasteful number, since it uses less digits than its factorization.

28196626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14098315.

The product of its digits is 62208, while the sum is 40.

The square root of 28196626 is about 5310.0495289592. The cubic root of 28196626 is about 304.3680402256.

The spelling of 28196626 in words is "twenty-eight million, one hundred ninety-six thousand, six hundred twenty-six".