75649347 has 6 divisors (see below), whose sum is σ = 109271292. Its totient is φ = 50432892.

The previous prime is 75649309. The next prime is 75649363. The reversal of 75649347 is 74394657.

It is not a de Polignac number, because 75649347 - 2¹⁰ = 75648323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75649307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4202733 + ... + 4202750.

It is an arithmetic number, because the mean of its divisors is an integer number (18211882).

Almost surely, 2^75649347 is an apocalyptic number.

75649347 is a deficient number, since it is larger than the sum of its proper divisors (33621945).

75649347 is a wasteful number, since it uses less digits than its factorization.

75649347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8405489 (or 8405486 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 75649347 is about 8697.6633068888. The cubic root of 75649347 is about 422.9299047207.

The spelling of 75649347 in words is "seventy-five million, six hundred forty-nine thousand, three hundred forty-seven".