28615348 has 6 divisors (see below), whose sum is σ = 50076866. Its totient is φ = 14307672.

The previous prime is 28615333. The next prime is 28615361. The reversal of 28615348 is 84351682.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 28494244 + 121104 = 5338^2 + 348^2 .

It is a super-2 number, since 2×28615348² = 1637676282322208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3576915 + ... + 3576922.

Almost surely, 2^28615348 is an apocalyptic number.

It is an amenable number.

28615348 is a deficient number, since it is larger than the sum of its proper divisors (21461518).

28615348 is a wasteful number, since it uses less digits than its factorization.

28615348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7153841 (or 7153839 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 28615348 is about 5349.3315470253. The cubic root of 28615348 is about 305.8672726670.

The spelling of 28615348 in words is "twenty-eight million, six hundred fifteen thousand, three hundred forty-eight".