396507077 has 2 divisors, whose sum is σ = 396507078. Its totient is φ = 396507076.

The previous prime is 396507047. The next prime is 396507079. The reversal of 396507077 is 770705693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243391201 + 153115876 = 15601^2 + 12374^2 .

It is a cyclic number.

It is not a de Polignac number, because 396507077 - 2¹⁴ = 396490693 is a prime.

It is a super-2 number, since 2×396507077² = 314435724222167858, which contains 22 as substring.

Together with 396507079, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396507079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198253538 + 198253539.

It is an arithmetic number, because the mean of its divisors is an integer number (198253539).

Almost surely, 2^396507077 is an apocalyptic number.

It is an amenable number.

396507077 is a deficient number, since it is larger than the sum of its proper divisors (1).

396507077 is an equidigital number, since it uses as much as digits as its factorization.

396507077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 277830, while the sum is 44.

The square root of 396507077 is about 19912.4854551108. The cubic root of 396507077 is about 734.6553535585.

The spelling of 396507077 in words is "three hundred ninety-six million, five hundred seven thousand, seventy-seven".