397446790654 has 4 divisors (see below), whose sum is σ = 596170185984. Its totient is φ = 198723395326.

The previous prime is 397446790651. The next prime is 397446790667. The reversal of 397446790654 is 456097644793.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397446790651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99361697662 + ... + 99361697665.

It is an arithmetic number, because the mean of its divisors is an integer number (149042546496).

Almost surely, 2^397446790654 is an apocalyptic number.

397446790654 is a deficient number, since it is larger than the sum of its proper divisors (198723395330).

397446790654 is a wasteful number, since it uses less digits than its factorization.

397446790654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198723395329.

The product of its (nonzero) digits is 137168640, while the sum is 64.

It can be divided in two parts, 397446 and 790654, that added together give a square (1188100 = 1090²).

The spelling of 397446790654 in words is "three hundred ninety-seven billion, four hundred forty-six million, seven hundred ninety thousand, six hundred fifty-four".