71262887 has 4 divisors (see below), whose sum is σ = 72121560. Its totient is φ = 70404216.

The previous prime is 71262881. The next prime is 71262907. The reversal of 71262887 is 78826217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78826217 = 1289 ⋅61153.

It is a cyclic number.

It is not a de Polignac number, because 71262887 - 2¹⁴ = 71246503 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 (71262881) 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, 429212 + ... + 429377.

It is an arithmetic number, because the mean of its divisors is an integer number (18030390).

Almost surely, 2^71262887 is an apocalyptic number.

71262887 is a deficient number, since it is larger than the sum of its proper divisors (858673).

71262887 is an equidigital number, since it uses as much as digits as its factorization.

71262887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858672.

The product of its digits is 75264, while the sum is 41.

The square root of 71262887 is about 8441.7348335517. The cubic root of 71262887 is about 414.5922098675.

The spelling of 71262887 in words is "seventy-one million, two hundred sixty-two thousand, eight hundred eighty-seven".