531078379 has 8 divisors (see below), whose sum is σ = 573797840. Its totient is φ = 488625696.

The previous prime is 531078319. The next prime is 531078389. The reversal of 531078379 is 973870135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 531078379 - 2¹⁹ = 530554091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531078319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62544 + ... + 70525.

It is an arithmetic number, because the mean of its divisors is an integer number (71724730).

Almost surely, 2^531078379 is an apocalyptic number.

531078379 is a deficient number, since it is larger than the sum of its proper divisors (42719461).

531078379 is a wasteful number, since it uses less digits than its factorization.

531078379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133389.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 531078379 is about 23045.1378602950. The cubic root of 531078379 is about 809.8157275275.

The spelling of 531078379 in words is "five hundred thirty-one million, seventy-eight thousand, three hundred seventy-nine".