102377897 has 2 divisors, whose sum is σ = 102377898. Its totient is φ = 102377896.

The previous prime is 102377881. The next prime is 102377929. The reversal of 102377897 is 798773201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95726656 + 6651241 = 9784^2 + 2579^2 .

It is an emirp because it is prime and its reverse (798773201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102377897 - 2⁴ = 102377881 is a prime.

It is not a weakly prime, because it can be changed into another prime (102377827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51188948 + 51188949.

It is an arithmetic number, because the mean of its divisors is an integer number (51188949).

Almost surely, 2^102377897 is an apocalyptic number.

It is an amenable number.

102377897 is a deficient number, since it is larger than the sum of its proper divisors (1).

102377897 is an equidigital number, since it uses as much as digits as its factorization.

102377897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 44.

The square root of 102377897 is about 10118.1963313626. The cubic root of 102377897 is about 467.8091744606.

The spelling of 102377897 in words is "one hundred two million, three hundred seventy-seven thousand, eight hundred ninety-seven".