397089850 has 24 divisors (see below), whose sum is σ = 762415488. Its totient is φ = 153711600.

The previous prime is 397089827. The next prime is 397089853. The reversal of 397089850 is 58980793.

It is a junction number, because it is equal to n+sod(n) for n = 397089794 and 397089803.

It is not an unprimeable number, because it can be changed into a prime (397089853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126544 + ... + 129643.

It is an arithmetic number, because the mean of its divisors is an integer number (31767312).

Almost surely, 2^397089850 is an apocalyptic number.

397089850 is a deficient number, since it is larger than the sum of its proper divisors (365325638).

397089850 is a wasteful number, since it uses less digits than its factorization.

397089850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256230 (or 256225 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 397089850 is about 19927.1134387297. The cubic root of 397089850 is about 735.0151014220.

The spelling of 397089850 in words is "three hundred ninety-seven million, eighty-nine thousand, eight hundred fifty".