906249801 has 4 divisors (see below), whose sum is σ = 1208333072. Its totient is φ = 604166532.

The previous prime is 906249793. The next prime is 906249823. The reversal of 906249801 is 108942609.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 108942609 = 3 ⋅36314203.

It is not a de Polignac number, because 906249801 - 2³ = 906249793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 906249801.

It is not an unprimeable number, because it can be changed into a prime (906249401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151041631 + ... + 151041636.

It is an arithmetic number, because the mean of its divisors is an integer number (302083268).

Almost surely, 2^906249801 is an apocalyptic number.

It is an amenable number.

906249801 is a deficient number, since it is larger than the sum of its proper divisors (302083271).

906249801 is a wasteful number, since it uses less digits than its factorization.

906249801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302083270.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 906249801 is about 30103.9831417705. The cubic root of 906249801 is about 967.7190893244.

The spelling of 906249801 in words is "nine hundred six million, two hundred forty-nine thousand, eight hundred one".