28936951 has 2 divisors, whose sum is σ = 28936952. Its totient is φ = 28936950.

The previous prime is 28936931. The next prime is 28936987. The reversal of 28936951 is 15963982.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28936951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28936898 and 28936907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28936931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14468475 + 14468476.

It is an arithmetic number, because the mean of its divisors is an integer number (14468476).

Almost surely, 2^28936951 is an apocalyptic number.

28936951 is a deficient number, since it is larger than the sum of its proper divisors (1).

28936951 is an equidigital number, since it uses as much as digits as its factorization.

28936951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 43.

The square root of 28936951 is about 5379.3076692080. The cubic root of 28936951 is about 307.0088698644.

The spelling of 28936951 in words is "twenty-eight million, nine hundred thirty-six thousand, nine hundred fifty-one".