61887467 has 2 divisors, whose sum is σ = 61887468. Its totient is φ = 61887466.

The previous prime is 61887443. The next prime is 61887487. The reversal of 61887467 is 76478816.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61887467 - 2⁶ = 61887403 is a prime.

It is not a weakly prime, because it can be changed into another prime (61887487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30943733 + 30943734.

It is an arithmetic number, because the mean of its divisors is an integer number (30943734).

Almost surely, 2^61887467 is an apocalyptic number.

61887467 is a deficient number, since it is larger than the sum of its proper divisors (1).

61887467 is an equidigital number, since it uses as much as digits as its factorization.

61887467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 47.

The square root of 61887467 is about 7866.8587759029. The cubic root of 61887467 is about 395.5495571192.

The spelling of 61887467 in words is "sixty-one million, eight hundred eighty-seven thousand, four hundred sixty-seven".