7000000077 has 16 divisors (see below), whose sum is σ = 11034483840. Its totient is φ = 3862068672.

The previous prime is 7000000061. The next prime is 7000000093. The reversal of 7000000077 is 7700000007.

It is an interprime number because it is at equal distance from previous prime (7000000061) and next prime (7000000093).

It is not a de Polignac number, because 7000000077 - 2⁴ = 7000000061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

7000000077 is a modest number, since divided by 77 gives 70 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7000000177) 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, 5746518 + ... + 5747735.

It is an arithmetic number, because the mean of its divisors is an integer number (689655240).

Almost surely, 2^7000000077 is an apocalyptic number.

It is an amenable number.

7000000077 is a deficient number, since it is larger than the sum of its proper divisors (4034483763).

7000000077 is a wasteful number, since it uses less digits than its factorization.

7000000077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11494292.

The product of its (nonzero) digits is 343, while the sum is 21.

The square root of 7000000077 is about 83666.0031135706. The cubic root of 7000000077 is about 1912.9311897865.

The spelling of 7000000077 in words is "seven billion, seventy-seven", and thus it is an aban number and an uban number.