398477605 has 16 divisors (see below), whose sum is σ = 497032704. Its totient is φ = 306417600.

The previous prime is 398477579. The next prime is 398477621. The reversal of 398477605 is 506774893.

It is a happy number.

It is not a de Polignac number, because 398477605 - 2⁷ = 398477477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2380 + ... + 28330.

It is an arithmetic number, because the mean of its divisors is an integer number (31064544).

Almost surely, 2^398477605 is an apocalyptic number.

It is an amenable number.

398477605 is a deficient number, since it is larger than the sum of its proper divisors (98555099).

398477605 is a wasteful number, since it uses less digits than its factorization.

398477605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26076.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The square root of 398477605 is about 19961.9038420688. The cubic root of 398477605 is about 735.8703527989.

The spelling of 398477605 in words is "three hundred ninety-eight million, four hundred seventy-seven thousand, six hundred five".