387735401 has 4 divisors (see below), whose sum is σ = 397192404. Its totient is φ = 378278400.

The previous prime is 387735389. The next prime is 387735407. The reversal of 387735401 is 104537783.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4946176 + 382789225 = 2224^2 + 19565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-387735401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387735407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4728440 + ... + 4728521.

It is an arithmetic number, because the mean of its divisors is an integer number (99298101).

Almost surely, 2^387735401 is an apocalyptic number.

It is an amenable number.

387735401 is a deficient number, since it is larger than the sum of its proper divisors (9457003).

387735401 is an equidigital number, since it uses as much as digits as its factorization.

387735401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9457002.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 387735401 is about 19690.9979686150. The cubic root of 387735401 is about 729.1974673349.

The spelling of 387735401 in words is "three hundred eighty-seven million, seven hundred thirty-five thousand, four hundred one".