47245487 has 2 divisors, whose sum is σ = 47245488. Its totient is φ = 47245486.

The previous prime is 47245483. The next prime is 47245501. The reversal of 47245487 is 78454274.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47245487 - 2² = 47245483 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47245483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23622743 + 23622744.

It is an arithmetic number, because the mean of its divisors is an integer number (23622744).

Almost surely, 2^47245487 is an apocalyptic number.

47245487 is a deficient number, since it is larger than the sum of its proper divisors (1).

47245487 is an equidigital number, since it uses as much as digits as its factorization.

47245487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 250880, while the sum is 41.

The square root of 47245487 is about 6873.5352621486. The cubic root of 47245487 is about 361.5098292365.

The spelling of 47245487 in words is "forty-seven million, two hundred forty-five thousand, four hundred eighty-seven".