88140077 has 4 divisors (see below), whose sum is σ = 91179420. Its totient is φ = 85100736.

The previous prime is 88140061. The next prime is 88140079. The reversal of 88140077 is 77004188.

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 14969161 + 73170916 = 3869^2 + 8554^2 .

It is a cyclic number.

It is not a de Polignac number, because 88140077 - 2⁴ = 88140061 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 (88140079) 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, 1519628 + ... + 1519685.

It is an arithmetic number, because the mean of its divisors is an integer number (22794855).

Almost surely, 2^88140077 is an apocalyptic number.

It is an amenable number.

88140077 is a deficient number, since it is larger than the sum of its proper divisors (3039343).

88140077 is a wasteful number, since it uses less digits than its factorization.

88140077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3039342.

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 88140077 is about 9388.2946800790. The cubic root of 88140077 is about 445.0318994092.

The spelling of 88140077 in words is "eighty-eight million, one hundred forty thousand, seventy-seven".