47346487 has 4 divisors (see below), whose sum is σ = 47878560. Its totient is φ = 46814416.

The previous prime is 47346469. The next prime is 47346491. The reversal of 47346487 is 78464374.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78464374 = 2 ⋅39232187.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47346487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47346427) 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, 265903 + ... + 266080.

It is an arithmetic number, because the mean of its divisors is an integer number (11969640).

Almost surely, 2^47346487 is an apocalyptic number.

47346487 is a deficient number, since it is larger than the sum of its proper divisors (532073).

47346487 is an equidigital number, since it uses as much as digits as its factorization.

47346487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532072.

The product of its digits is 451584, while the sum is 43.

The square root of 47346487 is about 6880.8783596282. The cubic root of 47346487 is about 361.7672542132.

The spelling of 47346487 in words is "forty-seven million, three hundred forty-six thousand, four hundred eighty-seven".