75847969 has 4 divisors (see below), whose sum is σ = 75884544. Its totient is φ = 75811396.

The previous prime is 75847957. The next prime is 75847987. The reversal of 75847969 is 96974857.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96974857 = 7 ⋅13853551.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75847969 is a prime.

It is a super-2 number, since 2×75847969² = 11505828802849922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75847939) 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, 14977 + ... + 19390.

It is an arithmetic number, because the mean of its divisors is an integer number (18971136).

Almost surely, 2^75847969 is an apocalyptic number.

It is an amenable number.

75847969 is a deficient number, since it is larger than the sum of its proper divisors (36575).

75847969 is a wasteful number, since it uses less digits than its factorization.

75847969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36574.

The product of its digits is 3810240, while the sum is 55.

The square root of 75847969 is about 8709.0739461782. The cubic root of 75847969 is about 423.2997240490.

The spelling of 75847969 in words is "seventy-five million, eight hundred forty-seven thousand, nine hundred sixty-nine".