97077797 has 2 divisors, whose sum is σ = 97077798. Its totient is φ = 97077796.

The previous prime is 97077793. The next prime is 97077817. The reversal of 97077797 is 79777079.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87628321 + 9449476 = 9361^2 + 3074^2 .

It is an emirp because it is prime and its reverse (79777079) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97077797 - 2² = 97077793 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97077793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48538898 + 48538899.

It is an arithmetic number, because the mean of its divisors is an integer number (48538899).

Almost surely, 2^97077797 is an apocalyptic number.

It is an amenable number.

97077797 is a deficient number, since it is larger than the sum of its proper divisors (1).

97077797 is an equidigital number, since it uses as much as digits as its factorization.

97077797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1361367, while the sum is 53.

The square root of 97077797 is about 9852.8065544798. The cubic root of 97077797 is about 459.5928928031.

The spelling of 97077797 in words is "ninety-seven million, seventy-seven thousand, seven hundred ninety-seven".