396678737 has 8 divisors (see below), whose sum is σ = 488220096. Its totient is φ = 313855632.

The previous prime is 396678727. The next prime is 396678743. The reversal of 396678737 is 737876693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 396678737 - 2⁴ = 396678721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (396678727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2179463 + ... + 2179644.

It is an arithmetic number, because the mean of its divisors is an integer number (61027512).

Almost surely, 2^396678737 is an apocalyptic number.

It is an amenable number.

396678737 is a deficient number, since it is larger than the sum of its proper divisors (91541359).

396678737 is a wasteful number, since it uses less digits than its factorization.

396678737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4359127.

The product of its digits is 8001504, while the sum is 56.

The square root of 396678737 is about 19916.7953496540. The cubic root of 396678737 is about 734.7613564948.

The spelling of 396678737 in words is "three hundred ninety-six million, six hundred seventy-eight thousand, seven hundred thirty-seven".