398613545 has 16 divisors (see below), whose sum is σ = 526616640. Its totient is φ = 287236800.

The previous prime is 398613541. The next prime is 398613547. The reversal of 398613545 is 545316893.

It is not a de Polignac number, because 398613545 - 2² = 398613541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 398613496 and 398613505.

It is not an unprimeable number, because it can be changed into a prime (398613541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27251 + ... + 39240.

It is an arithmetic number, because the mean of its divisors is an integer number (32913540).

Almost surely, 2^398613545 is an apocalyptic number.

It is an amenable number.

398613545 is a deficient number, since it is larger than the sum of its proper divisors (128003095).

398613545 is a wasteful number, since it uses less digits than its factorization.

398613545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66616.

The product of its digits is 388800, while the sum is 44.

The square root of 398613545 is about 19965.3085375608. The cubic root of 398613545 is about 735.9540236177.

The spelling of 398613545 in words is "three hundred ninety-eight million, six hundred thirteen thousand, five hundred forty-five".