47974397 has 2 divisors, whose sum is σ = 47974398. Its totient is φ = 47974396.

The previous prime is 47974393. The next prime is 47974417. The reversal of 47974397 is 79347974.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45346756 + 2627641 = 6734^2 + 1621^2 .

It is a cyclic number.

It is not a de Polignac number, because 47974397 - 2² = 47974393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47974393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23987198 + 23987199.

It is an arithmetic number, because the mean of its divisors is an integer number (23987199).

Almost surely, 2^47974397 is an apocalyptic number.

It is an amenable number.

47974397 is a deficient number, since it is larger than the sum of its proper divisors (1).

47974397 is an equidigital number, since it uses as much as digits as its factorization.

47974397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1333584, while the sum is 50.

The square root of 47974397 is about 6926.3552464482. The cubic root of 47974397 is about 363.3594907708.

The spelling of 47974397 in words is "forty-seven million, nine hundred seventy-four thousand, three hundred ninety-seven".