787273425 has 30 divisors (see below), whose sum is σ = 1458306278. Its totient is φ = 419878080.

The previous prime is 787273397. The next prime is 787273433. The reversal of 787273425 is 524372787.

It can be written as a sum of positive squares in 3 ways, for example, as 217592001 + 569681424 = 14751^2 + 23868^2 .

It is not a de Polignac number, because 787273425 - 2⁸ = 787273169 is a prime.

It is a super-2 number, since 2×787273425² = 1239598891422461250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 192364 + ... + 196413.

Almost surely, 2^787273425 is an apocalyptic number.

787273425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

787273425 is a deficient number, since it is larger than the sum of its proper divisors (671032853).

787273425 is a wasteful number, since it uses less digits than its factorization.

787273425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388799 (or 388785 counting only the distinct ones).

The product of its digits is 658560, while the sum is 45.

The square root of 787273425 is about 28058.3931293294. The cubic root of 787273425 is about 923.3688027692.

The spelling of 787273425 in words is "seven hundred eighty-seven million, two hundred seventy-three thousand, four hundred twenty-five".