397743098 has 4 divisors (see below), whose sum is σ = 596614650. Its totient is φ = 198871548.

The previous prime is 397743097. The next prime is 397743107. The reversal of 397743098 is 890347793.

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

It can be written as a sum of positive squares in only one way, i.e., 397324489 + 418609 = 19933^2 + 647^2 .

It is not an unprimeable number, because it can be changed into a prime (397743097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99435773 + ... + 99435776.

Almost surely, 2^397743098 is an apocalyptic number.

397743098 is a deficient number, since it is larger than the sum of its proper divisors (198871552).

397743098 is a wasteful number, since it uses less digits than its factorization.

397743098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198871551.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The square root of 397743098 is about 19943.4976370746. The cubic root of 397743098 is about 735.4179356005.

The spelling of 397743098 in words is "three hundred ninety-seven million, seven hundred forty-three thousand, ninety-eight".