65207738 has 4 divisors (see below), whose sum is σ = 97811610. Its totient is φ = 32603868.

The previous prime is 65207717. The next prime is 65207759. The reversal of 65207738 is 83770256.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (65207717) and next prime (65207759).

It can be written as a sum of positive squares in only one way, i.e., 42863209 + 22344529 = 6547^2 + 4727^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16301933 + ... + 16301936.

Almost surely, 2^65207738 is an apocalyptic number.

65207738 is a deficient number, since it is larger than the sum of its proper divisors (32603872).

65207738 is a wasteful number, since it uses less digits than its factorization.

65207738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32603871.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 65207738 is about 8075.1308348534. The cubic root of 65207738 is about 402.5004575436.

The spelling of 65207738 in words is "sixty-five million, two hundred seven thousand, seven hundred thirty-eight".