77001005 has 8 divisors (see below), whose sum is σ = 92461824. Its totient is φ = 61560400.

The previous prime is 77000999. The next prime is 77001013. The reversal of 77001005 is 50010077.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77001005 - 2¹⁰ = 76999981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5240 + ... + 13470.

It is an arithmetic number, because the mean of its divisors is an integer number (11557728).

Almost surely, 2^77001005 is an apocalyptic number.

It is an amenable number.

77001005 is a deficient number, since it is larger than the sum of its proper divisors (15460819).

77001005 is a wasteful number, since it uses less digits than its factorization.

77001005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10107.

The product of its (nonzero) digits is 245, while the sum is 20.

The square root of 77001005 is about 8775.0216523949. The cubic root of 77001005 is about 425.4339374093.

The spelling of 77001005 in words is "seventy-seven million, one thousand, five".