7620000077 has 4 divisors (see below), whose sum is σ = 7687433820. Its totient is φ = 7552566336.

The previous prime is 7620000061. The next prime is 7620000133. The reversal of 7620000077 is 7700000267.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7700000267 = 59113 ⋅130259.

It can be written as a sum of positive squares in 2 ways, for example, as 1533035716 + 6086964361 = 39154^2 + 78019^2 .

It is a cyclic number.

It is not a de Polignac number, because 7620000077 - 2⁴ = 7620000061 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 (7620000277) 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, 33716702 + ... + 33716927.

It is an arithmetic number, because the mean of its divisors is an integer number (1921858455).

Almost surely, 2^7620000077 is an apocalyptic number.

It is an amenable number.

7620000077 is a deficient number, since it is larger than the sum of its proper divisors (67433743).

7620000077 is a wasteful number, since it uses less digits than its factorization.

7620000077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67433742.

The product of its (nonzero) digits is 4116, while the sum is 29.

The square root of 7620000077 is about 87292.6118122261. The cubic root of 7620000077 is about 1967.8182858369.

The spelling of 7620000077 in words is "seven billion, six hundred twenty million, seventy-seven", and thus it is an aban number.