71962087 has 4 divisors (see below), whose sum is σ = 73036216. Its totient is φ = 70887960.

The previous prime is 71962081. The next prime is 71962109. The reversal of 71962087 is 78026917.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71962087 - 2¹¹ = 71960039 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 (71962081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536964 + ... + 537097.

It is an arithmetic number, because the mean of its divisors is an integer number (18259054).

Almost surely, 2^71962087 is an apocalyptic number.

71962087 is a deficient number, since it is larger than the sum of its proper divisors (1074129).

71962087 is a wasteful number, since it uses less digits than its factorization.

71962087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074128.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 71962087 is about 8483.0470351166. The cubic root of 71962087 is about 415.9437312176.

The spelling of 71962087 in words is "seventy-one million, nine hundred sixty-two thousand, eighty-seven".