396820377 has 40 divisors (see below), whose sum is σ = 626508960. Its totient is φ = 249609600.

The previous prime is 396820327. The next prime is 396820387. The reversal of 396820377 is 773028693.

It is a happy number.

It is not a de Polignac number, because 396820377 - 2⁶ = 396820313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (396820327) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 616818 + ... + 617460.

It is an arithmetic number, because the mean of its divisors is an integer number (15662724).

Almost surely, 2^396820377 is an apocalyptic number.

It is an amenable number.

396820377 is a deficient number, since it is larger than the sum of its proper divisors (229688583).

396820377 is a wasteful number, since it uses less digits than its factorization.

396820377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 396820377 is about 19920.3508252239. The cubic root of 396820377 is about 734.8487985518.

The spelling of 396820377 in words is "three hundred ninety-six million, eight hundred twenty thousand, three hundred seventy-seven".