75667913 has 4 divisors (see below), whose sum is σ = 76950480. Its totient is φ = 74385348.

The previous prime is 75667903. The next prime is 75667927. The reversal of 75667913 is 31976657.

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: 31976657 = 659 ⋅48523.

It is a cyclic number.

It is not a de Polignac number, because 75667913 - 2¹² = 75663817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75667903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641195 + ... + 641312.

It is an arithmetic number, because the mean of its divisors is an integer number (19237620).

Almost surely, 2^75667913 is an apocalyptic number.

It is an amenable number.

75667913 is a deficient number, since it is larger than the sum of its proper divisors (1282567).

75667913 is a wasteful number, since it uses less digits than its factorization.

75667913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282566.

The product of its digits is 238140, while the sum is 44.

The square root of 75667913 is about 8698.7305395673. The cubic root of 75667913 is about 422.9645006322.

The spelling of 75667913 in words is "seventy-five million, six hundred sixty-seven thousand, nine hundred thirteen".