1520396889 has 8 divisors (see below), whose sum is σ = 2211486432. Its totient is φ = 921452640.

The previous prime is 1520396869. The next prime is 1520396939. The reversal of 1520396889 is 9886930251.

It is a happy number.

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

It is not a de Polignac number, because 1520396889 - 2²⁷ = 1386179161 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1520396869) 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, 23036284 + ... + 23036349.

It is an arithmetic number, because the mean of its divisors is an integer number (276435804).

Almost surely, 2^1520396889 is an apocalyptic number.

It is an amenable number.

1520396889 is a deficient number, since it is larger than the sum of its proper divisors (691089543).

1520396889 is a wasteful number, since it uses less digits than its factorization.

1520396889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46072647.

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 1520396889 is about 38992.2670410429. The cubic root of 1520396889 is about 1149.8794805017.

The spelling of 1520396889 in words is "one billion, five hundred twenty million, three hundred ninety-six thousand, eight hundred eighty-nine".