428300537 has 4 divisors (see below), whose sum is σ = 489486336. Its totient is φ = 367114740.

The previous prime is 428300531. The next prime is 428300539. The reversal of 428300537 is 735003824.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 428300537 - 2²⁰ = 427251961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428300531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30592889 + ... + 30592902.

It is an arithmetic number, because the mean of its divisors is an integer number (122371584).

Almost surely, 2^428300537 is an apocalyptic number.

It is an amenable number.

428300537 is a deficient number, since it is larger than the sum of its proper divisors (61185799).

428300537 is an equidigital number, since it uses as much as digits as its factorization.

428300537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61185798.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 428300537 is about 20695.4230930416. The cubic root of 428300537 is about 753.7885558651.

The spelling of 428300537 in words is "four hundred twenty-eight million, three hundred thousand, five hundred thirty-seven".