47828906 has 4 divisors (see below), whose sum is σ = 71743362. Its totient is φ = 23914452.

The previous prime is 47828903. The next prime is 47828923. The reversal of 47828906 is 60982874.

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., 25654225 + 22174681 = 5065^2 + 4709^2 .

It is not an unprimeable number, because it can be changed into a prime (47828903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11957225 + ... + 11957228.

Almost surely, 2^47828906 is an apocalyptic number.

47828906 is a deficient number, since it is larger than the sum of its proper divisors (23914456).

47828906 is a wasteful number, since it uses less digits than its factorization.

47828906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23914455.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 47828906 is about 6915.8445615847. The cubic root of 47828906 is about 362.9918011237.

The spelling of 47828906 in words is "forty-seven million, eight hundred twenty-eight thousand, nine hundred six".