47981002 has 8 divisors (see below), whose sum is σ = 72957636. Its totient is φ = 23661792.

The previous prime is 47980997. The next prime is 47981009. The reversal of 47981002 is 20018974.

It can be written as a sum of positive squares in 2 ways, for example, as 44635761 + 3345241 = 6681^2 + 1829^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (47981009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164173 + ... + 164464.

Almost surely, 2^47981002 is an apocalyptic number.

47981002 is a deficient number, since it is larger than the sum of its proper divisors (24976634).

47981002 is a wasteful number, since it uses less digits than its factorization.

47981002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328712.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 47981002 is about 6926.8320320331. The cubic root of 47981002 is about 363.3761654935.

Adding to 47981002 its reverse (20018974), we get a palindrome (67999976).

The spelling of 47981002 in words is "forty-seven million, nine hundred eighty-one thousand, two".