76138743 has 4 divisors (see below), whose sum is σ = 101518328. Its totient is φ = 50759160.

The previous prime is 76138723. The next prime is 76138753. The reversal of 76138743 is 34783167.

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

It is not a de Polignac number, because 76138743 - 2²⁴ = 59361527 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 (76138723) 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, 12689788 + ... + 12689793.

It is an arithmetic number, because the mean of its divisors is an integer number (25379582).

Almost surely, 2^76138743 is an apocalyptic number.

76138743 is a deficient number, since it is larger than the sum of its proper divisors (25379585).

76138743 is a wasteful number, since it uses less digits than its factorization.

76138743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25379584.

The product of its digits is 84672, while the sum is 39.

The square root of 76138743 is about 8725.7517154684. The cubic root of 76138743 is about 423.8399608865.

The spelling of 76138743 in words is "seventy-six million, one hundred thirty-eight thousand, seven hundred forty-three".