387520946 has 4 divisors (see below), whose sum is σ = 581281422. Its totient is φ = 193760472.

The previous prime is 387520901. The next prime is 387520961. The reversal of 387520946 is 649025783.

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

It can be written as a sum of positive squares in only one way, i.e., 275394025 + 112126921 = 16595^2 + 10589^2 .

It is a junction number, because it is equal to n+sod(n) for n = 387520897 and 387520906.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96880235 + ... + 96880238.

Almost surely, 2^387520946 is an apocalyptic number.

387520946 is a deficient number, since it is larger than the sum of its proper divisors (193760476).

387520946 is a wasteful number, since it uses less digits than its factorization.

387520946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193760475.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 387520946 is about 19685.5517067722. The cubic root of 387520946 is about 729.0630037442.

It can be divided in two parts, 387 and 520946, that multiplied together give a palindrome (201606102).

The spelling of 387520946 in words is "three hundred eighty-seven million, five hundred twenty thousand, nine hundred forty-six".