75693813 has 16 divisors (see below), whose sum is σ = 109091136. Its totient is φ = 46408320.

The previous prime is 75693811. The next prime is 75693817. The reversal of 75693813 is 31839657.

It is not a de Polignac number, because 75693813 - 2¹ = 75693811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75693811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7506 + ... + 14412.

It is an arithmetic number, because the mean of its divisors is an integer number (6818196).

Almost surely, 2^75693813 is an apocalyptic number.

It is an amenable number.

75693813 is a deficient number, since it is larger than the sum of its proper divisors (33397323).

75693813 is a wasteful number, since it uses less digits than its factorization.

75693813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7204.

The product of its digits is 136080, while the sum is 42.

The square root of 75693813 is about 8700.2191351713. The cubic root of 75693813 is about 423.0127532776.

The spelling of 75693813 in words is "seventy-five million, six hundred ninety-three thousand, eight hundred thirteen".