2447972 has 6 divisors (see below), whose sum is σ = 4283958. Its totient is φ = 1223984.

The previous prime is 2447971. The next prime is 2447981. The reversal of 2447972 is 2797442.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1833316 + 614656 = 1354^2 + 784^2 .

It is not an unprimeable number, because it can be changed into a prime (2447971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305993 + ... + 306000.

It is an arithmetic number, because the mean of its divisors is an integer number (713993).

2^2447972 is an apocalyptic number.

It is an amenable number.

2447972 is a deficient number, since it is larger than the sum of its proper divisors (1835986).

2447972 is a wasteful number, since it uses less digits than its factorization.

2447972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611997 (or 611995 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 2447972 is about 1564.5996292982. The cubic root of 2447972 is about 134.7727681727.

The spelling of 2447972 in words is "two million, four hundred forty-seven thousand, nine hundred seventy-two".