76890547 has 4 divisors (see below), whose sum is σ = 77082696. Its totient is φ = 76698400.

The previous prime is 76890533. The next prime is 76890553. The reversal of 76890547 is 74509867.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74509867 = 3581 ⋅20807.

It is a cyclic number.

It is not a de Polignac number, because 76890547 - 2¹¹ = 76888499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76890497 and 76890506.

It is not an unprimeable number, because it can be changed into a prime (76890557) 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, 95473 + ... + 96274.

It is an arithmetic number, because the mean of its divisors is an integer number (19270674).

Almost surely, 2^76890547 is an apocalyptic number.

76890547 is a deficient number, since it is larger than the sum of its proper divisors (192149).

76890547 is a wasteful number, since it uses less digits than its factorization.

76890547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192148.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 76890547 is about 8768.7255060242. The cubic root of 76890547 is about 425.2304116238.

The spelling of 76890547 in words is "seventy-six million, eight hundred ninety thousand, five hundred forty-seven".