75872077 has 2 divisors, whose sum is σ = 75872078. Its totient is φ = 75872076.

The previous prime is 75872063. The next prime is 75872087. The reversal of 75872077 is 77027857.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59274601 + 16597476 = 7699^2 + 4074^2 .

It is a cyclic number.

It is not a de Polignac number, because 75872077 - 2¹¹ = 75870029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75872087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37936038 + 37936039.

It is an arithmetic number, because the mean of its divisors is an integer number (37936039).

Almost surely, 2^75872077 is an apocalyptic number.

It is an amenable number.

75872077 is a deficient number, since it is larger than the sum of its proper divisors (1).

75872077 is an equidigital number, since it uses as much as digits as its factorization.

75872077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192080, while the sum is 43.

The square root of 75872077 is about 8710.4579098920. The cubic root of 75872077 is about 423.3445673888.

The spelling of 75872077 in words is "seventy-five million, eight hundred seventy-two thousand, seventy-seven".