407276397 has 16 divisors (see below), whose sum is σ = 658224960. Its totient is φ = 246834000.

The previous prime is 407276333. The next prime is 407276399. The reversal of 407276397 is 793672704.

It is a happy number.

407276397 is a `hidden beast` number, since 4 + 0 + 7 + 2 + 7 + 639 + 7 = 666.

It is not a de Polignac number, because 407276397 - 2⁶ = 407276333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407276399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685354 + ... + 685947.

It is an arithmetic number, because the mean of its divisors is an integer number (41139060).

Almost surely, 2^407276397 is an apocalyptic number.

It is an amenable number.

407276397 is a deficient number, since it is larger than the sum of its proper divisors (250948563).

407276397 is a wasteful number, since it uses less digits than its factorization.

407276397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371321 (or 1371315 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 45.

The square root of 407276397 is about 20181.0900845321. The cubic root of 407276397 is about 741.2472252815.

The spelling of 407276397 in words is "four hundred seven million, two hundred seventy-six thousand, three hundred ninety-seven".