48781906 has 4 divisors (see below), whose sum is σ = 73172862. Its totient is φ = 24390952.

The previous prime is 48781877. The next prime is 48781907. The reversal of 48781906 is 60918784.

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., 47955625 + 826281 = 6925^2 + 909^2 .

It is not an unprimeable number, because it can be changed into a prime (48781907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12195475 + ... + 12195478.

Almost surely, 2^48781906 is an apocalyptic number.

48781906 is a deficient number, since it is larger than the sum of its proper divisors (24390956).

48781906 is a wasteful number, since it uses less digits than its factorization.

48781906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24390955.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 48781906 is about 6984.4044842778. The cubic root of 48781906 is about 365.3868569869.

The spelling of 48781906 in words is "forty-eight million, seven hundred eighty-one thousand, nine hundred six".