4007642077 has 4 divisors (see below), whose sum is σ = 4008702460. Its totient is φ = 4006581696.

The previous prime is 4007642069. The next prime is 4007642137. The reversal of 4007642077 is 7702467004.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1868487076 + 2139155001 = 43226^2 + 46251^2 .

It is a cyclic number.

It is not a de Polignac number, because 4007642077 - 2³ = 4007642069 is a prime.

It is a super-2 number, since 2×4007642077² = 32122390034681747858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4007642017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524502 + ... + 532087.

It is an arithmetic number, because the mean of its divisors is an integer number (1002175615).

Almost surely, 2^4007642077 is an apocalyptic number.

It is an amenable number.

4007642077 is a deficient number, since it is larger than the sum of its proper divisors (1060383).

4007642077 is a wasteful number, since it uses less digits than its factorization.

4007642077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060382.

The product of its (nonzero) digits is 65856, while the sum is 37.

The square root of 4007642077 is about 63305.9402978899. The cubic root of 4007642077 is about 1588.4113289456.

The spelling of 4007642077 in words is "four billion, seven million, six hundred forty-two thousand, seventy-seven".